Polarizers

Polarizers

We manufacture Precision Linear Polarizers using dichroic sheet polarizer material laminated between high quality glass substrates. For visible wavelength polarizers, this construction produces a peak-to-valley transmitted wavefront distortion of less

Precision Linear Polarizers

We manufacture Precision Linear Polarizers using dichroic sheet polarizer material laminated between high quality glass substrates. For visible wavelength polarizers, this construction produces a peak-to-valley transmitted wavefront distortion of less than λ/5. Various polarizer materials are used to cover wavelengths within 320 and 2000 nm. Both visible and near infrared polarizers are supplied with a high-efficiency, broadband antireflection (AR) coating; single-layer AR coatings are optional on our ultraviolet polarizers. Both mounted and unmounted Precision Linear Polarizers are offered as standard products. To facilitate use, our Precision Linear Polarizers have the transmission axis marked on the part.

Features:

  • High extinction ratios
  • Excellent surface quality
  • Wide angular acceptance
  • Low transmitted wavefront distortion
  • Ultraviolet, visible, near infrared wavelengths

Technical specifications:

Substrate Material
Ultraviolet UV Grade Fused Silica
Visible N-BK7
Near Infrared N-BK7
Polarizer Material Dichroic Polymer
Transmitted Wavefront Distortion (P-V @ 632.8 nm)
Ultraviolet ≤ λ/2
Visible ≤ λ/5
Near Infrared ≤ λ/2
Surface Quality (scratch-dig) 40-20
Beam Deviation
Ultraviolet ≤ 2 arc-min
Visible ≤ 1arc-min
Near Infrared ≤ 2 arc-min
Reflectance (per surface, at normal incidence)
Ultraviolet ~4.25% (uncoated)
Visible ≤ 0.5%
Near Infrared ≤ 0.5%
Storage Temperature
Ultraviolet -50˚C to +50˚C
Visible -50˚C to +50˚C
Near Infrared -50˚C to +50˚C
Operating Temperature
Ultraviolet -50˚C to +50˚C
Visible -50˚C to +50˚C
Near Infrared -50˚C to +50˚C
Laser Damage Threshold 1W/cm2, CW
200 mJ/cm2, 20 ns, visible
2 J/cm2, 20 ns, 1064 nm

Mounted
Diameter (in.) Clear aperture (in.) Thickness (in.) Part number
1.00 0.40 0.25 STM-DPM-050-UV1
1.00 0.40 0.25 STM-DPM-050-VIS
1.00 0.40 0.25 STM-DPM-050-NIR1
1.00 0.40 0.25 STM-DPM-050-NIR2-n
1.00 0.70 0.35 STM-DPM-100-UV1
1.00 0.70 0.35 STM-DPM-100-VIS
1.00 0.70 0.35 STM-DPM-100-NIR1
1.00 0.70 0.35 STM-DPM-100-NIR2-n
2.00 1.20 0.50 STM-DPM-200-UV1
2.00 1.20 0.50 STM-DPM-200-VIS
2.00 1.20 0.50 STM-DPM-200-NIR1
2.00 1.20 0.50 STM-DPM-200-NIR2-n
Unmounted
0.50 0.40 0.13 STM-DP-050-UV1
0.50 0.40 0.13 STM-DP-050-VIS
0.50 0.40 0.14 STM-DP-050-NIR1
0.50 0.40 0.14 STM-DP-050-NIR2-n
1.00 0.80 0.26 STM-DP-100-UV1
1.00 0.80 0.26 STM-DP-100-VIS
1.00 0.80 0.27 STM-DP-100-NIR1
1.00 0.80 0.27 STM-DP-100-NIR2-n

* Custom AR coatings are available on all polarizers. For NIR2 polarizers, please choose from the following AR coating options: NIR2 – 1 covers 650 – 950 nm; NIR2 – 2 covers 900 – 1250 nm; NIR2 – 3 covers 1200 – 1700 nm

High Contrast Linear Polarizer

In response to the need for improved contrast in the near infrared region, Sintec Optronics now offers a line of High Contrast Linear Polarizers. These polarizers are constructed by laminating Polarcor™ dichroic glass polarizers between high quality glass substrates to achieve superior wavefront performance and surface quality. Sintec Optronics High Contrast Linear Polarizers offer the performance of calcite polarizers in large apertures. Contrast ratios are available as high as 10,000:1. Custom wavelength ranges from 630 to 1580 nm with 60 to 80 nm bandpasses and sizes from 10 to 25 mm are available.

Features:

  • High Contrast
  • High Transmission
  • Absorptive Dichroic Glass

Typical transmission for a High Contrast Linear Polarizer centered at 800 nm. Extinction ratio is measured a Glan-Thompson polarizer

Technical specifications:

Substrate Material N-BK7
Polarizer Material Dichroic Glass
Transmitted Wavefront Distortion ≤ λ/4
(P-V @ 632.8 nm)
Surface Quality (scratch-dig) 40-20
Beam Deviation ≤ 3 arc-min
Reflectance (per surface, ≤ 0.5%
at normal incidence)
Storage Temperature -50˚C to +70˚C
Operating Temperature -50˚C to +70˚C
Laser Damage Threshold 1W/cm2, CW 200
mJ/cm2, 20 ns, visible
2 J/cm2, 20 ns, 1064 nm
Clear aperture in. [mm] Thickness ±0.020 in. [±0.51 mm] Diameter ± 0.005 in. [±0.13 mm] Part Number
0.4 0.25 Ø1.00 STM-PPM-050-λ
[10.2] [6.35] [Ø25.4]
0.7 0.35 Ø1.00 STM-PPM-100-λ
[17.8] [8.89] [Ø25.4]

Ultra-High Contrast Linear Polarizer

Our UHPUV series polarizers offer high contrast in the UV from 360 to 400 nm and our UHP-LNIR series polarizers offer high contrast over the exceptionally broad range from 650 to 5000 nm.

Features:

  • Extremely high contrast, greater than 10,000,000:1
  • Unlaminated part usable to 400° C
  • Wavelength ranges within 340 to 5000 nm
  • Absorptive dichroic glass

Technical specifications:

Substrate Material
Ultraviolet UV Grade Fused Silica
Visible N-BK7
Infrared N-BK7
WIR/MWIR Design dependent
Polarizer Material Dichroic Glass
Transmitted Wavefront Distortion (P-V @ 632.8 nm)
Ultraviolet ≤ 1λ per Ø10mm
Visible ≤ 1λ per Ø10mm
Infrared ≤ 1λ per Ø10mm
SWIR/MWIR Design Dependent
Surface Quality (scratch-dig) 40-20
Beam Deviation
Ultraviolet ≤ 5arc-min
Visible ≤ 5arc-min
Infrared ≤ 5arc-min
SWIR/MWIR ≤ 10 arc-min/12.5 mm
≤ 5 arc-min/25mm
Reflectance (per surface, at normal incidence) ~4.25%
Storage Temperature
Ultraviolet -20˚C to +50˚C
Visible -20˚C to +50˚C
Infrared -20˚C to +50˚C
SWIR/MWIR -50˚C to +400˚C
Operating Temperature
Ultraviolet -20˚C to +50˚C
Visible -20˚C to +50˚C
Infrared -20˚C to +50˚C
SWIR/MWIR -50˚C to +400˚ C
Mounted and Laminated
Clear aperture in. [mm] Thickness in. [mm] Diameter ± 0.005 in. [± 0.13 mm Part Number
0.4 0.25 Ø1.00 STM-UPM-050-UV
[10.2] [6.35] [Ø25.4]
0.4 0.25 Ø1.00 STM-UPM-050-VIS
[10.2] [6.35] [Ø25.4]
0.4 0.25 Ø1.00 STM-UPM-050-IR
[10.2] [6.35] [Ø25.4]
0.7 0.35 Ø1.00 STM-UPM-100-UV
[17.8] [8.89] [Ø25.4]
0.7 0.35 Ø1.00 STM-UPM-100-VIS
[17.8] [8.89] [Ø25.4]
0.7 0.35 Ø1.00 STM-UPM-100-IR
[17.8] [8.89] [Ø25.4]
Mounted and Unlaminated
0.4 0.185 Ø1.00 STM-UPM-050-MIR
[10.2] [4.70] [Ø25.4]
0.7 0.185 Ø1.00 STM-UPM-100-MIR
[17.8] [4.70] [Ø25.4]
Unmounted and Laminated
Clear aperture in. [mm] Thickness in. [mm] Diameter ± 0.010 in. [±0.25 mm] Part Number
0.4 0.14 Ø0.50 STM-UHP-050-UV
[10.2] [3.56] [Ø12.7]
0.4 0.14 Ø0.50 STM-UHP-050-VIS
[10.2] [3.56] [Ø12.7]
0.4 0.14 Ø0.50 STM-UHP-050-IR
[10.2] [3.56] [Ø12.7]
0.8 0.26 Ø1.00 STM-UHP-100-UV
[20.3] [6.60] [Ø25.4]
0.8 0.26 Ø1.00 STM-UHP-100-VIS
[20.3] [6.60] [Ø25.4]
0.8 0.26 Ø1.00 STM-UHP-100-IR
[20.3] [6.60] [Ø25.4]
Unmounted and Unlaminated
0.4 0.008 Ø0.50 STM-UHP-050-MIR
[10.2] [0.203] [Ø12.7]
0.8 0.008 Ø1.00 STM-UHP-100-MIR
[20.3] [0.203] [Ø25.4]

Glan-Thompson Polarizer

By precisely controlling internal prism angles in these calcite polarizers, a very efficient linear polarizer is produced. Sintec Optronics offers Glan-Thompson Polarizers, intended for precision optical instrumentation and low power laser applications. Key advantages of Glan-Thompson Polarizers include excellent extinction ratio performance and a broad sp ectral range. Our Glan-Thompson Polarizers are supplied in a black anodized cylindrical housing for easy mounting.

Features:

  • Broad spectral range
  • Excellent extinction ratio

Technical specifications:

Wavelength Range 320 - 2300 nm
Substrate Material Grade A Optical Calcite
Beam Deviation ± 3 arc-min
Reflectance (per surface, at normal incidence)
Uncoated ~4.5%
Single Layer MgF2 ~1.5%
Contrast Ratio 10,000:1 over central
2/3 of clear aperture
Acceptance Angle ± 5˚
Laser Damage Threshold 25-30 W/cm2 CW
Clear aperture (mm) Wavelength range (mm) AR coating Part Number
.197 [5.0] 320-2300 none STM-GTP-M05
.197 [5.0] 400-700 MgF2 STM-GTP-M05-0550
.197 [5.0] 650-1000 MgF2 STM-GTP-M05-0825
.197 [5.0] 1000-1500 MgF2 STM-GTP-M05-1250
.31 [7.9] 320-2300 none STM-GTP-M08
.31 [7.9] 400-700 MgF2 STM-GTP-M08-0550
.31 [7.9] 650-1000 MgF2 STM-GTP-M08-0825
.31 [7.9] 1000-1500 MgF2 STM-GTP-M08-1250
.39 [9.9] 320-2300 none STM-GTP-M08
.39 [9.9] 400-700 MgF2 STM-GTP-M10-0550
.39 [9.9] 650-1000 MgF2 STM-GTP-M10-0825
.39 [9.9] 1000-1500 MgF2 STM-GTP-M10-1250

Ultra Broadband Polarizer

Sintec Optronics provides an extremely broadband polarizer solution. Manufactured for a wavelength range of 300 to 2700 nm rivaling the span of a Glan-Thompson calcite polarizer, this optic is ideal for broadband applications. The proprietary composition of the Ultra Broadband Polarizer allows for an unprecedented width of spectral range at a fraction of the cost of other competing polarizers. This cost savings is coupled with a thickness of only 0.182” including mount and solid contrast ratio through the entire range from UV to IR.

Features:

  • Extremely broadband
  • Wide acceptance angle
  • Custom sizes and shapes
  • Excellent transmitted contrast
  • Thin, compact design

Technical specifications:

Stock Options
Substrate Material UV Grade Fused Silica
Wavelength Range 300-2700 nm, uncoated
Transmitted Wavefront Distortion ± 3.5 λ per inch (P-V@ 633 nm)
*Custom options available for [≤ 1 λ per inch (RMS @ 633 nm)]
Improvement of TWD
Surface Quality 80-50 scratch-dig
Acceptance Angle ± 40˚
Laser Damage Threshold 0.80 J/cm2 at 355 nm
0.20 J/cm2 at 532 nm
0.30 J/cm2 at 1064 nm
Operating Temperature -50˚C to + 50˚C
Substrate Thickness Polarizer Thickness ~ 0.087 in.
Mount Thickness 0.182 in.
Custom Options
Size 0.5”- 4.0”
Shape Customer specified
Clear Aperture in. (mm) Dimensions in. (mm) Part number
Ø0.75 Ø1.00 STM-GPM-100-UNC
[19.3 mm] [Ø25.4 mm]
Ø1.25 Ø1.50 STM-GPM-150-UNC
[32.0 mm] [Ø38.1 mm]
Ø1.75 Ø2.00 STM-GPM-200-UNC
[44.7 mm] [Ø50.8 mm]

Typical measured contrast and transmission over relevant wavelength range

MWIR Polarizer

This polarizer is a wire grid on an antireflection coated silicon substrate optimized for 3 to 6 microns. The ring mounting provides for ease of handling and has the polarization transmission direction marked. The wire grid surface is quite delicate and should only be cleaned non-mechanically. Standard outer diameters are one and two inch but custom sizes, shapes and unmounted polarizers are also available.

Features:

  • Excellent contrast ratio
  • Thin profile
  • High transmission
  • Custom apertures > 2 inches available

Technical specifications:

Substrate Material Silicon, 0.7 mm thickness
AR Coating Doubled sided AR
Wavelength Range 3 µm to 6 µm
Contrast Ratio See graph
Acceptance Angle ≤ 20˚
Transmitted Wavefront Distortion ≤ 1.5 λ (P - V at 4 mm)
(per inch) [≤ λ/3 (RMS at 4 mm)]
Beam Deviation ≤ 2 arc min
Maximum Aperture Up to 4 in. circular
Surface Quality 80-50 scratch-dig
Clear aperture in. [mm] Thickness in. [mm] Diameter in. [mm] Part Number
Ø0.76 0.182 Ø1.00 STM-MPM-100
[19.3] [4.62] [Ø25.4]
Ø1.76 0.182 Ø2.00 STM-MPM-200
[44.7] [4.62] [Ø50.8]
  • Custom wavelengths are available between 420-3000 nm.

Typical measured contrast and transmission over relevant wavelength range

Deep Ultraviolet Polarizer

Developed for wavelengths between 245 and 285 nm, this polarizer is ideal for applications around 266 nm. Additionally, this polarizer is transparent in the visible range, allowing visible light to easily pass through. The UV Polarizer has a proprietary structure that allows for a high laser damage threshold. Custom shapes and sizes are possible due to the large manufactured substrates.

Features:

  • Works between 245 to 285 nm
  • Wire grid polarizer
  • High damage threshold
  • Transmission of > 60%
  • Contrast ratio of up to 50:1

Technical specifications:

Substrate Material Fused Silica, 1.0 mm thick
Wavelength Range 245 - 285 nm
Transmitted Wavefront Distortion ≤ λ/2 (P - V @ 633 nm)
[≤ λ/8 (RMS @ 633 nm)]
Surface Quality 40-20 scratch-dig
Beam Deviation ≤ 5 arc-min
Acceptance Angle 0˚± 6˚
Clear aperture in. [mm] Dimensions in. [mm] Part number
Mounted Square
Up to 1.20 [30.5] Up to 2.00 [50.8] Custom options available – please inquire
Unmounted Square
0.4 0.5 STM-DUV-050-0266S
[10.2] [2.7]
0.8 1 STM-DUV-100-0266S
[20.3] [25.4]

Typical measured contrast and transmission over relevant wavelength range

Wire Grid Versalight™ Polarizer

VersaLight™ is constructed of a thin layer of aluminum MicroWires® on a glass substrate and sets a new standard for applications requiring high durability, contrast and a wide field of view for visible through infrared wavelengths. VersaLight™ offers the performance quality of dichroic sheet polarizers while extending the operating temperature to 200° C. The nature of VersaLight’s MicroWire construction allows it to perform as an exceptional polarizing beam splitter. In operation, VersaLight™ reflects one polarization state and transmits another, both with high contrast. VersaLight™ offers the broadest band and highest field of view of any polarizer material presently available. VersaLight™ can be shaped as needed and stacked to achieve very high contrast ratios. Large aperture VersaLight™ Polarizers are available on a custom basis, up to 200m rounds.

Features:

  • Broadband use
  • Reflective polarizer
  • Large acceptance angle

Technical specifications:

Wavelength Range
Ultraviolet 325 nm to 450 nm
Near infrared 450 nm to 1000 nm
Infrared 1000 nm to 2000 nm
Substrate Material
Ultraviolet UV Grade Fused Silica
Near nfrared Eagle XG®
Infrared Eagle XG®
Transmitted Wavefront Distortion (P-V @ 632.8 nm)
Ultraviolet ~ λ/4 per in.
Near Infrared ~ 5λ per in.
Infrared ~ 5λ per in.
Surface Quality (scratch-dig) 80-50
Beam Deviation ≤ 1arc-min
Contrast Ratio (see graph) Typ. Reflection > 80:1
Typ. Transmission > 2000:1
Maximum Temperature 200° C for single layer
Laser Damage Threshold 10 KW/cm2, CW, 1540 nm

* On ultraviolet Versalight, the wire grid surface will be unprotected, fragile and cannot be touched. UV VersaLight is optimized for 300-450 nm; NIR VersaLight is optimized for 450-1000 nm; IR VersaLight is optimized for 1000-2000 nm.

Square
Thickness ± .002 in. [± 0.05 mm] Diameter +0/-0.010 in. [+0/-0.25 mm] Part number
0.039 0.5 × 0.5 STM-VLS-050-UV
[1.0] [12.7 × 12.7]
0.028 0.5 × 0.5 STM-VLS-050-NIR
[0.7] [12.7 × 12.7]
0.028 0.5 × 0.5 STM-VLS-050-IR
[0.7] [12.7 × 12.7]
0.039 1.0 × 1.0 STM-VLS-100-UV
[1.0] [25.4 × 25.4]
0.028 1.0 × 1.0 STM-VLS-100-NIR
[0.7] [25.4 × 25.4]
0.028 1.0 × 1.0 STM-VLS-100-IR
[0.7] [25.4 × 25.4]
0.039 2.0 × 2.0 STM-VLS-200-UV
[1.0] [50.8 × 50.8]
0.028 2.0 × 2.0 STM-VLS-200-NIR
[0.7] [50.8 × 50.8]
0.028 2.0 × 2.0 STM-VLS-200-IR
[0.7] [50.8 × 50.8]
Round
0.039 Ø0.5 STM-VLR-050-UV
[1.0] [Ø12.7]
0.028 Ø0.5 STM-VLR-050-NIR
[0.7] [Ø12.7]
0.028 Ø0.5 STM-VLR-050-IR
[0.7] [Ø12.7]
0.039 Ø1.0 STM-VLR-100-UV
[1.0] [Ø25.4]
0.028 Ø1.0 STM-VLR-100-NIR
[0.7] [Ø25.4]
0.028 Ø1.0 STM-VLR-100-IR
[0.7] [Ø25.4]
0.039 Ø2.0 STM-VLR-200-UV
[1.0] [Ø50.8]
0.028 Ø2.0 STM-VLR-200-NIR
[0.7] [Ø50.8]
0.028 Ø2.0 STM-VLR-200-IR
[0.7] [Ø50.8]

Wire Grid Polarizing Beam Splitter

Sintec Optronics presents its Versalight wire grid polarizing beam splitters. Manufactured for wavelength ranges between 420 and 2600 nm, this polarizer is ideal for broadband and wide field-of-view applications. Wire grid polarizing beam splitters are manufactured out of our Versalight wire grid polarizer sandwiched between right angle prisms. No AR coatings are standard for maximum wavelength usage. Broadband AR coatings are available on the faces of the cube covering either visible (450 to 1100 nm) or IR (1000 to 2400 nm.)

Features:

  • Broadband wavelength range, 420-2600 nm
  • Wide acceptance angle
  • Custom sizes and shapes
  • Excellent transmitted contrast

Technical specifications:

Substrate Material N-BK7 (or equivalent)
Average Reflectivity 450-1100 nm - VIS - < 2.0 %
Infrared1000-2400 nm - IR - < 2.0 %
420-2600 nm - UNC - ~4.25%
Transmitted Wavefront Distortion ≤ λ/2 (P-V @ 633 nm)
[≤ λ/8 (RMS @ 633 nm)]
Surface Quality 80-50 scratch-dig
Beam Deviation (transmittance) ≤ 5 arc-min
Dimensional Tolerance ± 0.020 in.
Acceptance Angle ± 40˚
Operating Temperature -40˚C to +75˚C
Unmounted
Clear aperture in. [mm] Dimensions in. [mm] Part number
0.40 in. [10.2] 0.52 × 0.52 × 0.50 [13.2 × 13.2 × 12.7] STM-BV-050-VIS
STM-BV-050-IR
STM-BV-050-UNC
0.80 in. [20.3] 1.02 × 1.02 × 1.00 [25.9 × 25.9 × 25.4] STM-BV-100-VIS
STM-BV-100-IR
STM-BV-100-UNC
1.60 in. [40.6] 2.02 × 2.02 × 2.00 [51.3 × 51.3 × 50.8] STM-BV-200-VIS
STM-BV-200-IR
STM-BV-200-UNC

Ice Cube - Wire Grid Polarizing Beam Splitter

KEY FEATURES

  • Wide angle of incidence range
  • Uniformity over wide range of angles
  • High contrast and transmission over wide range of angles

This polarizing beam splitter (PBS) cube is optimized for use over a wide range of acceptance angles while maintaining color uniformity and image contrast in the visible wavelength ranges. The ICE Cube allows compact optical designs with reduced optical paths. Engineers are now able to design smaller systems while maintaining excellent optical performance. The ICE Cube polarizer performance exceeds that for the commonly used thin film MacNeille cubes in both acceptable wavelength range and angle of incidence range while providing more than twice the contrast ratio in the transmitted beam for most wavelengths.

The ICE Cube is assembled by embedding our polarizing beam splitter plate between two AR coated glass prisms. These cubes are designed with Nanowire® grid structures centered on the hypotenuse of the ICE Cube. The ICE Cube PBS separates natural light into two main orthogonal, linearly polarized components; the p-polarized light which is transmitted while the s-polarized light is reflected at a 90 degree angle. In principle, half of the incident light is reflected, and the other half is transmitted.

Substrate material N-BK7
Operating wavelength 400-700nm (typical average for azimuthal)
Average reflectivity <0.5%@400-700 (4x cube faces)
Transmitted wavefront distortion £λ/3 (typical @633nm)
Surface quality 40-20 scratch-dig
Beam deviation £5arc min
Dimensional tolerance +0.0mm/-0.25mm
Acceptance angle Up to ±25o
Maximum temperature 90oC

Many options, including custom wavelengths and sizes are available.

Ordering Information:

Part number: STBV-100-ICE (unmounted, dimension 1x1x1in, clear aperture 0.90in)

Laser Line Beamsplitting Polarizer

Right-angle prisms are matched in pairs to produce high quality laser line beamsplitting polarizers with superior wavefront quality in both transmission and reflection. The hypotenuse face of one prism is coated with a multilayer dielectric beamsplitting coating optimized for laser performance. Two prisms are cemented together, protecting the critical coating from performance-degrading environmental factors. Each cube separates an unpolarized incident beam into two orthogonal, linearly polarized components with negligible absorption. Following the principle of pile-of-plates polarizers, p-polarized light is transmitted with approximatley 1000:1 contrast and s-polarization is reflected with approximatley 20:1 contrast. These polarizers perform best with collimated or near-collimated light.

Features:

  • High contrast
  • Low reflectance
  • Low transmitted wavefront distortion

Technical specifications:

Substrate N-BK7
Transmitted Wavefront Distortion ≤ λ/5 for p-polarized beam
(P-V @ 632.8 nm)
(P-V @ 632.8 nm)
Surface Quality (scratch-dig) 40-20
Beam Deviation
Transmitted ≤ 3 arc-min
Reflected ≤ 6 arc-min
Reflectance (per surface) ≤ 0.5%
Contrast Ratio
Transmitted ≤ 500:1
Reflected ≤ 20:1
Transmission
p-polarized light ≥ 95% transmitted
s-polarized light ≥ 99% reflected
Acceptance Angle ± 2˚
Storage Temperature -40˚C to +100˚C
Operating Temperature -40˚C to +100˚C
Laser Damage Threshold 500 W/cm2, CW
300 mJ/cm2, 10 ns, visible
200 mJ/cm2, 10 ns, 1064 nm
Dimensions ± 0.020 in. [± 0.51 mm] Part number
0.50 × 0.50 x 0.50 STM-BP-050-λ
[12.7 x 12.7 x 12.7]
1.00 × 1.00 × 1.00 STM-BP-100-λ
[25.4 × 25.4 × 25.4]

Broadband Beamsplitting Polarizer

For applications involving broadband or tunable wavelength sources, Sintec Optronics presents a line of Broadband Beamsplitting Polarizers covering the visible to near infrared region. These cubes offer increased utility for a range of polarization needs. As with the Laser Line Beamsplitting Polarizers, two usable polarization forms result, conveniently separated by 90°. For unpolarized input, incident light will be equally split, 50% transmitted and reflected. Varying the input polarization axis will change the split ratio. These broadband designs require well-collimated input and accurate angular alignment for optimal performance. All four entrance and exit faces are antireflection coated to minimize losses.

Features:

  • High contrast
  • Low reflectance
  • Broad spectral range
  • High damage threshold

Technical specifications:

Wavelength Range
Visible 440-680 nm
Near IR1 620-900 nm
Near IR2 820-1250 nm
Near IR3 1150-1600 nm
Substrate Material SF 2
Transmitted Wavefront Distortion ≤ λ/5 for p-polarized beam
(P-V @ 632.8 nm)
(P-V @ 632.8 nm)
Beam Deviation
Transmitted ≤ 3 arc-min
Reflected ≤ 6 arc-min
Reflectance (per surface) ≤ 0.5%
Contrast Ratio
Transmitted ≥ 500:1
Reflected ≥ 20:1
Transmission
p-polarized light ≥ 95% transmitted
s-polarized light ≥ 98% reflected
Clear Aperture Central 80% diameter
Acceptance Angle ± 2˚
Storage Temperature -40˚C to +100˚C
Operating Temperature -40˚C to +100˚C
Laser Damage Threshold 500 W/cm2, CW
300 mJ/cm2, 10 ns, visible
200 mJ/cm2, 10 ns, 1064 nm
Clear aperture Dimensions ± 0.020 in. [± 0.51 mm] Part number
Visible (440-680)
0.40 × 0.40 × 0.40 0.50 × 0.50 × 0.50 STM-BB-050-VIS
[10.2 x 10.2 x 10.2] [12.7 x 12.7 x 12.7]
0.80 × 0.80 × 0.80 1.00 × 1.00 × 1.00 STM-BB-100-VIS
[20.3 × 20.3 × 20.3] [25.4 × 25.4 × 25.4]
Near IR1 (620-900 nm)
0.40 × 0.40 × 0.40 0.50 × 0.50 × 0.50 STM-BB-050-IR1
[10.2 x 10.2 x 10.2] [12.7 x 12.7 x 12.7]
0.80 × 0.80 × 0.80 1.00 × 1.00 × 1.00 STM-BB-100-IR1
[20.3 × 20.3 × 20.3] [25.4 × 25.4 × 25.4]
Near IR2 (820-1250 nm)
0.40 × 0.40 × 0.40 0.50 × 0.50 × 0.50 STM-BB-050-IR2
[10.2 x 10.2 x 10.2] [12.7 x 12.7 x 12.7]
0.80 × 0.80 × 0.80 1.00 × 1.00 × 1.00 STM-BB-100-IR2
[20.3 × 20.3 × 20.3] [25.4 × 25.4 × 25.4]
Near IR3 (1150-1600 nm)
0.40 × 0.40 × 0.40 0.50 × 0.50 × 0.50 STM-BB-050-IR3
[10.2 x 10.2 x 10.2] [12.7 x 12.7 x 12.7]
0.80 × 0.80 × 0.80 1.00 × 1.00 × 1.00 STM-BB-100-IR3
[20.3 × 20.3 × 20.3] [25.4 × 25.4 × 25.4]

Dichroic Circular Polarizer

Dichroic Circular Polarizers consist of a dichroic linear polarizer and true zero-order quarterwave retarder. Precisely aligning the retarder fast axis at 45° to the linear polarization direction ensures optimum performance. True zero-order retarders are used in the assembly of our Dichroic Circular Polarizers and tight retardance tolerances contribute to the final performance.

Features:

  • High isolation
  • Large diameters available
  • Low transmitted wavefront distortion

Technical specifications:

Standard Wavelengths 532, 632.8, 670, 780, 850, 1064, and 1550 nm
Substrate Material N-BK7
Polarizer Material Dichroic Polymer
Retarder Material Birefringent Polymer
Transmitted Wavefront Distortion (P-V @ 632.8 nm)
Visible ≤ λ/5
Near Infrared ≤ λ/2
Beam Deviation
Visible ≤ 1 arc-min
Near Infrared ≤ 2 arc-min
Surface Quality (scratch-dig) 40-20
Reflectance (per surface) ≤ 0.5%
Isolation >99.8%
Storage Temperature -20˚C to +50˚C
Operating Temperature -20˚C to +50˚C
Laser Damage Threshold 1 W/cm2, CW
Mounted
Clear aperture in. [mm] Thickness in. [mm] Diameter ± 0.005 in. [± 0.13 mm] Part number
0.4 0.25 Ø1.00 STM-CPM-050-λ
[10.2] [6.35] [Ø25.4]
0.7 0.35 Ø1.00 STM-CPM-100-λ
[17.8] [8.9] [Ø25.4]
1.2 0.5 Ø2.00 STM-CPM-200-λ
[30.5] [12.7] [Ø50.8]
Unmounted
Clear aperture in. [mm] Thickness in. [mm] Diameter +0/-0.010 in. [+0/-0.25 mm] Part Number
0.4 0.13 Ø0.50 STM-CP-050-λ
[10.2] [3.3] [Ø12.7]
0.8 0.26 Ø1.00 STM-CP-100-λ
[20.3] [6.6] [Ø25.4]

Thin Film Polarizers

Description

High Contrast Thin Film Polarizers (TFP) are made using advanced Ion Beam Sputtering (IBS) coating technology. These thin film polarizers separate s- and p-polarization components of high energy laser beams. Due to very low losses they are perfect for intra and extra cavity usage. Because of their high damage threshold and extinction ratio (>1000:1), thin film polarizers are a good replacement for Glan laser polarizing prisms or polarizing cube beam splitters. For optimal performance, polarizers should be mounted in an appropriate holder allowing angular adjustment. We offer two types of high contrast polarizers: with higher LIDT or higher contrast values.

Features

  • High Tp, low absorption & scattering
  • No aging effects due to negligible porosity of the coatings
  • Transmitted wavefront distortion (TWD), P-V: <λ/10 @ 632.8 nm
  • Laser damage threshold up to 20 J/cm2 @ 532 nm, 10 ns, 10 Hz (s-pol)
Wave-length, nm Transmission, p-pol, % Reflection, s-pol, % Contrast, (Tp/Ts) Typical LIDT @ 10 ns, 10 Hz for s-pol, J/cm2 Typical LIDT @ 10 ns, 10 Hz for p-pol, J/cm2 Product ID for AOI=Brewster
343 >97 >99.7 >300:1 >4 >1 2-HCBTFP-0343-0254
355 >97 >99.7 >300:1 >4 >1 2-HCBTFP-0355-0254
515 >99 >99.9 >1000:1 >5 >2 2-HCBTFP-0515-0254
532 >98 >99.8 >500:1 >7 >3 2-HCPBTFP-0532-0254
532 >99 >99.9 >1000:1 >5 >2 2-HCBTFP-0532-0254
800 >99 >99.9 >1000:1 >7 >3 2-HCBTFP-0800-0254
1030 >99 >99.8 >500:1 >20 >10 2-HCPBTFP-1030-1020
1030 >99 >99.9 >1000:1 >7 >3 2-HCBTFP-1030-0254
1064 >99 >99.8 >500:1 >20 >10 2-HCPBTFP-1064-1020
1064 >99 >99.9 >1000:1 >7 >3 2-HCBTFP-1064-0254
Wave-length, nm Transmission, p-pol, % Reflection, s-pol, % Contrast, (Tp/Ts) Typical LIDT @ 10 ns, 10 Hz for s-pol, J/cm2 Typical LIDT @ 10 ns, 10 Hz for p-pol, J/cm2 Product ID for AOI=45o
355 >95 >99.8 >500:1 >4 >1 2-HC45TFP-0355-0254
532 >98 >99.8 >500:1 >7 >3 2-HCP45TFP-0532-0254
532 >97 >99.9 >1000:1 >5 >2 2-HC45TFP-0532-0254
1030 >97 >99.8 >500:1 >20 >10 2-HCP45TFP-1030-0254
1030 >97 >99.8 >1000:1 >7 >3 2-HC45TFP-1030-0254
1064 >97 >99.8 >500:1 >20 >10 2-HCP45TFP-1064-0254
1064 >97 >99.9 >1000:1 >7 >3 2-HC45TFP-1064-0254

* Customized solutions are available on request. Typical dimensions are Ø25.4 x 5 mm, 20 x 40 x 5 mm and 10 x 20 x 5 mm.

Polarizing Cubes for High Energy Applications

Description

Polarizing beamsplitter cubes offer several advantages over plate beamsplitters. They are easy to handle, high contrast and high extinction ratio polarizers that split a randomly polarized beam into two orthogonal linearly polarized components. These products are typically used in laser beam separation, combination and optical-isolation applications. The epoxy-free construction of the cubes enables a superior performance at high energy levels.

Features

  • Easy, deformation-free mounting
  • High extinction ratio in transmission: Tp/Ts >1000:1
  • Low reflected and transmitted wavefront distortion, P-V: <λ/10 @ 632.8nm
  • No ghost reflections
  • Minimal beam displacement
  • Negligible absorption of reflected and transmitted beams
  • High transmission of p-polarization: Tp > 97%
  • No material fluorescence in UV region
  • Laser damage threshold up to 20 J/cm2 @ 1064nm, 10ns, 100Hz
Wavelength, nm Dimensions, mm Reflection
s-pol, %
Transmission p-pol, % Product ID
345-365 (centered @ 355) 12.7x12.7x12.7 >99.5 >96 2-HPCB-A-0125
25.4x25.4x25.4 >99.5 >96 2-HPCB-A-0254
510-550 (centered @ 532) 12.7x12.7x12.7 >99.5 >97 2-HPCB-B-0125
25.4x25.4x25.4 >99.5 >97 2-HPCB-B-0254
1020-1090 (centered @ 1064) 12.7x12.7x12.7 >99.5 >97 2-HPCB-C-0125
25.4x25.4x25.4 >99.5 >97 2-HPCB-C-0254
1510-1580 (centered @ 1550) 12.7x12.7x12.7 >99.5 >97 2-HPCB-D-0125
  • Customized solutions are available on request.

ST Series Polarizers and Depolarisers

Type Material Characters
Glan-Taylor Calcite(350~2300nm)
α-BBO(190~3500nm)
YVO4 (500~4000nm)
Air spaced, nearly Brewster cut, not suitable for high power laser
Glan-laser Calcite(350~2300nm)
α-BBO (190~3500nm)
YVO4 (500~4000nm)
Air spaced, nearly Brewster cut, with windows, suitable for high power laser
Glan-Thompson Calcite(350~2300nm)
α-BBO(190~3500nm)
Glue contacted, wide accept angle, not suitable for high power laser
Brewster Polarizers Calcite(350~2300nm)
YVO4 (500~4000nm)
High transmission:Tp>98%
High damage threshold
Glan-Thompson PBS Calcite(350~2300nm)
α-BBO(190~3500nm)
used to separate o and e light 45 degree
Wollaston Calcite(350~2300nm)
Crystal Quartz (200~300nm)
YVO4 (500~4000nm)
Glue contacted or Optical contacted, separate o and e light
Rochon Polarizers Crystal Quartz (200~2300nm)
α-BBO(190~500nm)
YVO4 (500~4000nm)
Glue contacted or Optical contacted, separate o and e light( only o light walks off)
Polarization Beam Splitter K9 (350~2000nm)
ZF2(400~2000nm)
used to separate o and e light with right angle

1. Glan Taylor Polarizer

Glan Taylor polarizer is made of two birefringent prisms that are assembled with an air space. The polarizer with no side escape windows is suitable for low to medium power application where the side rejected beams are not required.

  • Air-spaced
  • Close to Brewster's angle cutting
  • High polarization purity
  • Short length
  • Wide wavelength range
  • Suitable for low to medium power application
Material a-BBO, Calcite or YVO4
Wavelength Range BBO:200~3500 nm, Calcite:350~2300 nm, YVO4: 500~4000 nm
Extinction Ratio Calcite:<5x10-5 ; a-BBO: <5x10-6 ; YVO 4 : <5x10-6
Surface Quality 20 / 10
Parallelism <1 arc Min
Beam Deviation < 3 arc minutes
Wavefront Distortion λ /4@633nm
Damage Threshold >200 MW/cm2
Coating Single MgF2
Mount Black Anodized Aluminium

1.1 a-BBO Glan Taylor Polarizer

Part No. Wavelength Range(nm) Extinction Ratio Angular Field C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PGT1206 200-270nm <5x10-6 >6.0° 6.0 15.0 15.0
STH-PGT1208 8.0 25.4 17.0
STH-PGT1210 10.0 25.4 19.0
STH-PGT1212 12.7 25.4 21.0
STH-PGT1215 15.0 30.0 23.0
STH-PGT1306 300-700nm <5x10-6 >6.0° 6.0 15.0 15.0
STH-PGT1308 8.0 25.4 17.0
STH-PGT1310 10.0 25.4 19.0
STH-PGT1312 12.0 25.4 21.0
STH-PGT1315 15.0 30.0 23.0
STH-PGT1320 20.0 38.0 29.0
STH-PGT1706 700-3000nm <5x10-6 >6.0° 6.0 15.0 15.0
STH-PGT1708 8.0 25.4 17.0
STH-PGT1710 10.0 25.4 19.0
STH-PGT1712 12.0 25.4 21.0
STH-PGT1715 15.0 30.0 23.0
STH-PGT1720 20.0 38.0 29.0

1.2 Calcite Glan Taylor Polarizer

Part No. Wavelength Range Extinction Ratio Angular Field C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PGT2006 350~2300nm <5x10-6 >7.7° 6.0 15.0 15.0
STH-PGT2008 8.0 25.4 17.0
STH-PGT2010 10.0 25.4 19.0
STH-PGT2012 12.7 25.4 21.0
STH-PGT2015 15.0 30.0 23.0
STH-PGT2020 20.0 38.0 29.0

1.3 YVO4 Glan Taylor Polarize

Part No. Wavelength Range Extinction Ratio Angular Field C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PGT3006 500-4000nm <5x10-6 >6.5° 6.0 15.0 12.0
STH-PGT3008 8.0 25.4 12.0
STH-PGT3010 10.0 25.4 17.0
STH-PGT3012 12.7 25.4 19.0
STH-PGT3015 15.0 30.0 20.0
STH-PGT3020 20.0 38.0 25.0

2. Glan Laser Polarizer

Glan laser prism polarizer is made of two same birefringent material prisms that are assembled with an air space. The polarizer is a modification of the Glan Taylor type and is designed to have less reflection loss at the prism junction. The polarizer with two escape windows allow the rejected beam to escape out of the polarizer, which makes it more desirable for high energy lasers. The surface quality of these faces is relatively poor as compared to that of entrance and exit faces. No scratch dig surface quality specifications are assigned to these faces.

  • Air-spaced
  • Close to Brewster's angle cutting
  • High polarization purity
  • Short length
  • Wide wavelength range
  • Suitable for medium power application
Material a-BBO, Calcite or YVO4
Wavelength Range BBO:200~3500 nm, Calcite:350~2300 nm, YVO4: 500~4000 nm
Extinction Ratio Calcite:<5x10-5; a-BBO: <5x10-6; YVO4: <5x10-6
Surface Quality 20 / 10
Parallelism <1 arc min
Beam Deviation < 3 arc minutes
Wavefront Distortion λ /4@633nm
Damage Threshold >500 MW/cm2
Coating Single MgF2
Mount Black anodized aluminium

2.1 a-BBO Glan Laser Polarizer

Part No. Wavelength Range Extinction Ratio Angular Field C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PGL1206 200-300nm <5x10-6 >6.0° 6.0 15.0 29.0
STH-PGL1208 8.0 25.4 31.0
STH-PGL1210 10.0 25.4 31.0
STH-PGL1212 12.7 25.4 38.6
STH-PGL1215 15.0 30.0 48.9
STH-PGL1306 300-700nm <5x10-6 >6.0° 6.0 15.0 25.0
STH-PGL1308 8.0 25.4 25.0
STH-PGL1310 10.0 25.4 26.0
STH-PGL1312 12.0 25.4 27.0
STH-PGL1315 15.0 30.0 33.4
STH-PGL1320 20.0 38.0 43.6
STH-PGL1706 700-3000nm <5x10-6 >6.0° 6.0 15.0 23.0
STH-PGL1708 8.0 25.4 24.7
STH-PGL1710 10.0 25.4 25.9
STH-PGL1712 12.0 25.4 27.0
STH-PGL1715 15.0 30.0 33.4
STH-PGL1720 20.0 38.0 43.6

2.2 Calcite Glan Laser Polarizer

Part No. Wavelength Range Extinction Ratio Angular Field C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PGL2006 350~2300nm <5x10-5 >7.7° 6.0 15.0 21.0
STH-PGL2008 8.0 25.4 24.5
STH-PGL2010 10.0 25.4 26.2
STH-PGL2012 12.7 25.4 27.5
STH-PGL2015 15.0 30.0 33.3
STH-PGL2020 20.0 38.0 42.3

2.3 YVO4 Glan Laser Polarizer

Part No. Wavelength Range Extinction Ratio Angular Field C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PGL3006 500-4000nm <5x10-6 >6.5° 6.0 15.0 18.0
STH-PGL3008 8.0 25.4 20.0
STH-PGL3010 10.0 25.4 23.0
STH-PGL3012 12.7 25.4 25.0
STH-PGL3015 15.0 30.0 26.0
STH-PGL3020 20.0 38.0 29.0

3. Glan Thompson Polarizer

Glan Thompson polarizer beamsplitter cube is made of two calcite prisms cemented together. It has been arranged to permit the output of the s-polarized beam at 45° from the straight through p-polarized beam. They provide high polarization purity and high transmission in the two emerging beams. These are useful if it is required to utilize both linear polarization states. They are mounted in a rectangular metal cell and surrounded with an absorbing compound.

  • Widest field angle
  • Cemented, suitable for low power application
  • High polarization purity
Material a-BBO, Calcite
Wavelength Range a-BBO: 200~3500nm, Calcite: 350~2300nm
Extinction Ratio a-BBO:<5x10-6 , Calcite: <5x10-5
Surface Quality 20 / 10
Parellelism <1 arc min
Beam Deviation < 3 arc minutes
Wavefront Distortion λ /4@633nm
Wavefront Distortion >200 MW/cm2
Coating Single MgF2
Mount Black anodized aluminium

3.2 Calcite Glan Thompson Polarizer (350-2300nm)

Part No. L/CA Extinction Ratio Angular Field C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PGM2106 2.5 <5x10-6 >14~16° 6.0 15.0 22.0
STH-PGM2108 8.0 25.4 28.0
STH-PGM2110 10.0 25.4 33.0
STH-PGM2112 12.7 25.4 39.0
STH-PGM2115 15.0 30.0 45.5
STH-PGM2206 3.0 <5x10-6 >25~28° 6.0 15.0 26.0
STH-PGM2208 8.0 25.4 32.0
STH-PGM2210 10.0 25.4 38.0
STH-PGM2212 12.7 25.4 46.0
STH-PGM2215 15.0 30.0 53.0

3.3 a-BBO Glan Thompson Polarizer (200-1100nm)

Part No. L/CA Extinction Ratio Angular Field C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PGM1006 1.6 <5x10-6 >15° 6.0 15.0 22.0
STH-PGM1008 8.0 25.4 28.0
STH-PGM1010 10.0 25.4 33.0
STH-PGM1012 12.7 25.4 39.0
STH-PGM1015 15.0 30.0 45.5

4. Wollaston Polarizers

Wollaston polarizer is made of two birefringent material prisms that are cemented together. The deviations of the ordinary and extraordinary beams are nearly symmetrical about the input beam axis, so that the Wollaston polarizing beam splitter has approximately twice the deviation of the Rochon. The separation angle exhibits chromatic dispersion, as shown in the blow. Any separation angle can be designed upon the requirement.

Material a-BBO, Calcite, YVO4, Quartz
Wavelength Range a-BBO: 190~3500nm, Calcite: 350~2300 nm, YVO4: 500~4000nm, Quartz: 200~2300 nm
Extinction Ratio a-BBO:<5x10-6 Calcite: <5x10-5, YVO4: <5x10-6, Quartz: <5x10-4
Surface Quality 20 / 10
Parallelism <1 arc min
Beam Deviation < 3 arc minutes
Wavefront Distortion λ /4@633nm
Damage Threshold >500 MW/cm2
Coating Single MgF2
Mount Black anodized aluminium

4.1 aa-BBO Wollaston Polarizer

Part No. Wavelength Range Extinction Ratio Separation Angle C.A.φa (mm) O.D.φd (mm) L (mm)
STH-PWS1006 190~3500nm <5x10-6 16° @800nm 6.0 15.0 15.0
STH-PWS1008 8.0 25.4 17.0
STH-PWS1010 10.0 25.4 19.0
STH-PWS1015 15.0 30.0 23.0

4.2 Calcite Wollaston Polarizer

Part No. Wavelength Range Extinction Ratio Separation Angle C.A.φa (mm) O.D.φd (mm) L (mm)
STH-PWS2006 350~2300nm <5x10-5 19° @980nm 6.0 15.0 15.0
STH-PWS2008 8.0 25.4 17.0
STH-PWS2010 10.0 25.4 19.0
STH-PWS2015 15.0 30.0 23.0
STH-PWS2020 20.0 38.0 29.0

4.3 YVO4 Wollaston Polarizer

Part No. Wavelength Range Extinction Ratio Separation Angle C.A.φa (mm) O.D.φd (mm) L (mm)
STH-PWS3006 400~4000nm <5x10-6 20° @1550nm 6.0 15.0 15.0
STH-PWS3008 8.0 25.4 17.0
STH-PWS3010 10.0 25.4 19.0
STH-PWS3015 15.0 30.0 23.0
STH-PWS3020 20.0 38.0 29.0

4.4 Quartz Wollaston Polarizer

Part No. Wavelength Range Extinction Ratio Separation Angle C.A.φa (mm) O.D.φd (mm) L (mm)
STH-PWS4006 200~2300nm <5x10-4 2° @1064nm 6.0 15.0 20.0
STH-PWS4008 8.0 25.4 24.0
STH-PWS4010 10.0 25.4 28.0
STH-PWS4015 15.0 30.0 38.0
STH-PWS4020 20.0 38.0 48.0

5. Rochon Polarizers

Rochon polarizer is one of the earliest designs, which is made of two birefringent material prisms cemented together. Both ordinary and extraordinary beams propagate collinearly down the optic axis in the first prism under the ordinary refractive index. Upon entering the second prism the ordinary beam experiences the same refractive index and continues undeviated. The extra-ordinary beam, however, now has a lower refractive index and is refracted at the interface. The angle of refraction is further increased at the birefringent material/air exit surface. Any separation angle can be designed for specific wavelength upon the requirement.

Material a-BBO, Calcite, YVO 4, Quartz
Wavelength Range a-BBO: 190~3500, Calcite: 350~2300 nm, YVO4: 500~4000 nm, Quartz: 200~2300 nm
Extinction Ratio a-BBO:<5x10-6, YVO4: <5x10-6, Quartz: <5x10-5, MgF2: <5x10-5
Surface Quality 20 / 10
Parallelism <1 arc min
Beam Deviation < 3 arc minutes
Wavefront Distortion λ /4@633nm
Damage Threshold >500 MW/cm2
Coating Single MgF2
Mount Black anodized aluminium

5.1 a-BBO Rochon Polarizer

Part No. Wavelength Range Extinction Ratio Separation Angle C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PRH1006 190~2300nm <5x10-6 8° @1064nm 6.0 15.0 15.0
STH-PRH1008 8.0 25.4 17.0
STH-PRH1010 10.0 25.4 19.0
STH-PRH1015 15.0 30.0 23.0
STH-PRH1020 20.0 38.0 29.0

5.2 YVO4 Rochon Polarizer

Part No. Wavelength Range Extinction Ratio Separation Angle C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PRH3006 400~4000nm <5x10-6 10° @1550nm 6.0 15.0 15.0
STH-PRH3008 8.0 25.4 17.0
STH-PRH3010 10.0 25.4 19.0
STH-PRH3015 15.0 30.0 23.0
STH-PRH3020 20.0 38.0 25.0

5.3 Quartz Rochon Polarizer

Part No. Wavelength Range Extinction Ratio Separation Angle C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PRH4006 200~2300nm <5x10-5 1° @1064nm 6.0 15.0 20.0
STH-PRH4008 8.0 25.4 24.0
STH-PRH4010 10.0 25.4 28.0
STH-PRH4015 15.0 30.0 38.0
STH-PRH4020 20.0 38.0 48.0

5.4 MgF2 Rochon Polarizer

Part No. Wavelength Range Extinction Ratio Separation Angle C.A. φa (mm) O.D. φd (mm) L (mm)
STH-PRH5006 110~8000nm <5x10-5 1° @980nm 6.0 15.0 14.0
STH-PRH5008 8.0 25.4 18.0
STH-PRH5010 10.0 25.4 18.0
STH-PRH5015 15.0 30.0 38.0
STH-PRH5020 20.0 38.0 48.0

6. Polarizating Beam Splitter

Polarizing cube beamsplitters split randomly polarized beams into two orthogonally and linearly polarized components, that is S-polarized light is reflected at a 90deg angle while P-polarized light is directly transmitted. Each beamsplitter consists of a pair of precision high tolerance right angle prisms cemented together with a dielectric coating on the hypotenuse of one of prisms.

Material K9 or ZF Glass
Wavelength Range 350~2300nm
Dimension Tolerance +/-0.2mm
Surface Quality 60 / 40
Beam Deviation <3 arc sec
Extinction Ratio >500:1~1000:1 (Narrow band)
>300:1~500:1 (Broad band)
Principal Transmittance Tp>95%, Ts<1%
Principal Reflectance Rs>99%, Rp<5%
Coating Polarization beamsplitter coating on hypotenuse face, AR coating on all input and output face
Standard Wavelength Narrow Band: 532, 632.8, 808, 980, 1064, 1310, 1550
Broadband: 450-650, 650-900, 900-1200, 1200-1550, 1550-1610

Narrowband:

Part No. Extinction Ratio Size (mm )
STH-PBS2005 >500:1 (Narrow Band)
>300:1 (Broad band)
5X5X5
STH-PBS2010 10X10X10
STH-PBS2015 15X15X15
STH-PBS2020 20X20X20
STH-PBS2025 25X25X25

High Power STH-PBS:

Part No. Extinction Ratio Size (mm )
STH-PBS1005 >1000:1 (Narrow Band)
>500:1 (Broad band)
5X5X5
STH-PBS1010 10X0X10
STH-PBS1015 15X15X15
STH-PBS1020 20X20X20
STH-PBS1025 25X25X25

7. Depolarizer

Plane polarized beam is not welcomed in some circumstances such as reflecting spectrometer. A depolarizer will change the plane polarization into a mix of polarization states by scrambling up the polarization which is to change plane polarized beam into pseudo-depolarized beam and produce depolarization. Depolarizer is widely used in polarization sensitive instrument.

The usual depolarizer can only be used at narrow band wavelength to avoid the big beam deviation. With our special design, our depolarizer can be used in a wide range of wavelength and keep the beam deviation in a acceptable range.

Usually we can get better result if we orient the input polarization state 45deg to the optical axis of the depolarizer. And also the effectiveness of the depolarizer increases with the size of the beam cross-section

Material Quartz 200-2500nm
Dimension Tolerance ±0.2mm
Surface Quality Better than 60/40 scratch and dig
Beam Deviation <3 arc minutes
Wavefront Distortion <λ/4@632.8nm
Clear Aperture >90% central
Coating Uncoated, AR coating available
Part No. Wavelength Range(nm) Diameter(mm)
STH-DOP10212 532-850 12.7