Various Beam Expanders

Various Beam Expanders

Keywords: Beam Expander, 405nm, 808nm, 980nm, 1550nm, 355nm, 532nm, 106

Our zoom beam expanders (or called as variable beam expander) are highly corrected 4-lens element systems with variable magnification from 1x up to 8x and Galilei-design.

We offer 3 types of beam expanders: fixed beam expanders, zoom beam expanders and motorised beam expanders at various wavelengths of 266nm, 343-355nm, 405nm, 633nm, 515-545nm, 808-980nm, 1030-1090nm, 155nm, 1850-1980nm, 10.6um. Other wavelengths and custom-designed beam expanders are available upon request. For more information, please feel free to contact us.

The specifications of the lenses used in the beam expanders are:

  • Material: BK7 fine annealed, fused silica and ZnSe depending on laser wavelength.

  • Diameter: -0.1mm

  • Thickness: ±0.1mm

  • Flatness: /4

  • Surface Quality: 60-40 scratch-dig

  • Coating: HR dielectric coatings R > 99%

Part number description: BEST-xxx-yy-T-AA
 BEST --- BEST series beam expanders, zoom beam expanders.
 xxxx------- laser wavelength: 10.6 means 10.6um, 532 means 532nm, 633 means 633nm.
 yy -------- expansion ratio (magnification) in times
 T ---------- type: T means adjustable/various/zoom beam expander; none means fixed beam expander.
 AA -------- special purpose.
 Example: BEST-10.6-3: 10.6um fixed beam expander, 3x.
  BEST-10.6-3.5T: 10.6um zoom beam expander, max. 3.5x.

We may use the following abbreviations in the tables: WL=wavelength, MAG=magnification, CA=clear aperture, CA1=input clear aperture, CA2=output clear aperture, D1=input diameter, D2=output diameter, L1=total length of beam expander, M1=connection or mounting thread, D=diameter.

Following is the beam expanders at the wavelengths of 405nm, 633nm, 808-980nm, 1550nm, 1850-1980nm.

(1) 405nm Beam Expanders

BEST Series 405nm Beam Expanders

Part No.MAGCA1(mm)CA2(mm)D2 (mm)L1 (mm)
BEST-405-1.5X-W1.56.030.04685
BEST-405-2X-W26.030.04685
BEST-405-3X-W36.030.04685
BEST-405-5X-W56.030.04685
BEST-405-7X-W74.230.04685
BEST-405-10X-W103.030.04689
BEST-405-20X-W201.530.04695

STS Series 405nm Beam Expanders

ModelWL(nm)MAGCA1(mm)CA2(mm)D2(mm)L1(mm)ThreadMotorised
STS-EXM0015/1734051.58316585.1M30x1pergency motorised
STS-EXM0020/17340528316585.1M30x1pergency motorised
STS-EXM0030/17340538316585.1M30x1pergency motorised
STS-EXM0050/17340558316585.1M30x1pergency motorised
STS-EXM0070/17340578316585.1M30x1pergency motorised
STS-EXM0100/173405106316585.1M30x1pergency motorised
STS-EXM0200/173405205316585.1M30x1pergency motorised
STS-EXP0015/1734051.58314685M30x1not motorised
STS-EXP0020/17340528314685M30x1not motorised
STS-EXP0030/17340538314685M30x1not motorised
STS-EXP0050/17340558314685M30x1not motorised
STS-EXP0070/17340578314685M30x1not motorised
STS-EXP0100/173405106314685M30x1not motorised
STS-EXP0200/173405205314685M30x1not motorised

(2) 633nm HeNe Laser Beam Expanders

Part No.MAGEP, mmCA2, mmL1, mmL2, mmOD, mmMT INMT OUT
BEGK-633-2281859.6511.7230M22X0.75M30X1
BEGK-633-3381860.4212.4830M22X0.75M30X1
BEGK-633-4481860.0612.1230M22X0.75M30X1
BEGK-633-5581859.5711.6330M22X0.75M30X1
BEGK-633-6681859.9211.9930M22X0.75M30X1
BEGK-633-8861860.4312.5030M22X0.75M30X1
BEGK-633-101061860.6512.7130M22X0.75M30X1
BEGK-633-151581899.10--30M22X0.75--
BEG-633-2020830102.19--45M30X1M43X0.75
BEGK-633-3030832149.81--45M22X0.75M43X0.75
BEGK-633-40408100232.6--112M22X0.75--

(3) 808–980nm Beam Expanders

The material is fused silica.

ModelWL(nm)MAGCA1(mm)CA2(mm)D2(mm)L1(mm)ThreadMotorised
STS-EXM0020/094808 - 98028316585.1M30x1pergency motorised
STS-EXM0030/094808 - 98038316585.1M30x1pergency motorised
STS-EXM0050/094808 - 98058316585.1M30x1pergency motorised
STS-EXM0100/094808 - 980106316585.1M30x1pergency motorised
STS-EXP0020/094808 - 98028314685M30x1not motorised
STS-EXP0030/094808 - 98038314685M30x1not motorised
STS-EXP0050/094808 - 98058314685M30x1not motorised
STS-EXP0100/094808 - 980106314685M30x1not motorised

(4) 1550nm Beam Expanders

The material is fused silica.

ModelWL(nm)MAGCA1(mm)CA2(mm)D2(mm)L1(mm)ThreadMotorised
STS-EXM0015/00815501.58316585.1M30x1pergency motorised
STS-EXM0020/008155028316585.1M30x1pergency motorised
STS-EXM0025/00815502.58316585.1M30x1pergency motorised
STS-EXM0030/008155038316585.1M30x1pergency motorised
STS-EXM0040/008155048316585.1M30x1pergency motorised
STS-EXM0050/008155058316585.1M30x1pergency motorised
STS-EXM0060/008155068316585.1M30x1pergency motorised
STS-EXM0070/008155078316585.1M30x1pergency motorised
STS-EXM0080/008155088316585.1M30x1pergency motorised
STS-EXM0090/008155098316585.1M30x1pergency motorised
STS-EXM0100/0081550106316585.1M30x1pergency motorised
STS-EXM0120/0081550128316585.1M30x1pergency motorised
STS-EXP0015/00815501.58314685M30x1not motorised
STS-EXP0020/008155028314685M30x1not motorised
STS-EXP0025/00815502.58314685M30x1not motorised
STS-EXP0030/008155038314685M30x1not motorised
STS-EXP0040/008155048314685M30x1not motorised
STS-EXP0050/008155058314685M30x1not motorised
STS-EXP0060/008155068314685M30x1not motorised
STS-EXP0070/008155078314685M30x1not motorised
STS-EXP0080/008155088314685M30x1not motorised
STS-EXP0090/008155098314685M30x1not motorised
STS-EXP0100/0081550106314685M30x1not motorised
STS-EXP0120/0081550128314685M30x1not motorised

(5) 1850-1980nm Beam Expanders

ModelMAGCA1(mm)CA2(mm)D2(mm)L1(mm)ThreadMotorised
STS-EXM0015/1591.58316585.1M30x1pergency motorised
STS-EXM0020/15928316585.1M30x1pergency motorised
STS-EXM0025/1592.58316585.1M30x1pergency motorised
STS-EXM0030/15938316585.1M30x1pergency motorised
STS-EXM0040/15948316585.1M30x1pergency motorised
STS-EXM0050/15958316585.1M30x1pergency motorised
STS-EXM0060/15968316585.1M30x1pergency motorised
STS-EXM0070/15978316585.1M30x1pergency motorised
STS-EXM0080/15988316585.1M30x1pergency motorised
STS-EXM0090/15998316585.1M30x1pergency motorised
STS-EXM0100/159106316585.1M30x1pergency motorised
STS-EXM0120/159128316585.1M30x1pergency motorised
STS-EXP0015/1591.58314685M30x1not motorised
STS-EXP0020/15928314685M30x1not motorised
STS-EXP0025/1592.58314685M30x1not motorised
STS-EXP0030/15938314685M30x1not motorised
STS-EXP0040/15948314685M30x1not motorised
STS-EXP0050/15958314685M30x1not motorised
STS-EXP0060/15968314685M30x1not motorised
STS-EXP0070/15978314685M30x1not motorised
STS-EXP0080/15988314685M30x1not motorised
STS-EXP0090/15998314685M30x1not motorised
STS-EXP0100/159106314685M30x1not motorised
STS-EXP0120/159128314685M30x1not motorised

(6) Beam Expander Mount

The beam expander mounts are used to hold a beam expander, red pilot diode, mirrors with the screw M22x0.75mm. They are 4D adjustable for optics alignment at angles, positions.

beam expander mount

  • Model: BEM-22x0.75

  • 4D adjustable (4-axil adjustable) (X and Y direction travel ±2mm, X and Z direction tilting ±4 deg)

  • Suitable for the beam expander with a screw of M22x0.75mm

  • Dimension:60x60x45mm

Custom-made beam expander mounts available upon request.

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