Hollow-core Crystal Fiber

  • Update:Apr 30, 2020
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A PMC is a stand-alone and modular component that consists of a HC-PCF filled with gas and fiber terminations. The presence of gas within an optical fibre on a micron scale provides a million-fold increase in the gas-laser efficiency.

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STG Series Hollow-core Crystal Fibers

1. STG-C-Green Series Hollow-core Fibers

Hollow-core fiber optimized for 500-700nm range.

Physical Properties

 

Core contour

Hypocycloïde

Inner core Ø

63 μm ± 1

Outer fiber Ø

300 μm ± 3%

Fiber coating layer

Primary polymer coating

Optical Properties

 

Center Wavelength

800nm / 1600 nm

Attenuation @ 532nm

30 dB/km ±10

Dispersion @ 532nm

1.5 ps/nm.km ± 0.5

Transmission Band**

200 nm

Mode field Diameter

24 μm ± 1

3dB bend loss radius

10 cm ± 2

**Attenuation lower than 100 dB/km for the 500-700nm

2. STG-C-TiSa_Er-7C

Kagome hollow core fiber with optimized performance for 800nm and 1550nm. Ideal for Ti-Sapphire and Erbium based lasers

Physical Properties

 

Core contour

Hypocycloïde with negative curvature parameter b=1*

Inner core Ø

63 μm ± 1

Outer fiber Ø

300 μm ± 3%

Fiber coating layer

Primary polymer coating

Optical Properties

 

Center Wavelength

800 / 1600 nm

Attenuation @ 532nm

<80 dB/km ±10

Dispersion @ 532nm

1 ps/nm.km ± 0.5

Transmission Band**

>100nm / >300nm

Mode field Diameter

44 μm ± 1

3dB bend loss radius

5 cm ± 2

**Attenuation lower than 100 dB/km for the 1300-1750nm

3. STG-C-Yb-7C

Hollow-Core Fiber optimized for 900-1100nm range. Ideal for Yb and Nd:YAG based lasers.

Physical Properties

 

Core contour

Hypocycloïde with negative curvature parameter b>0.7*

Inner core Ø

57 μm ± 1

Outer fiber Ø

320 μm ± 3%

Fiber coating layer

Primary polymer coating

Optical Properties

 

Center Wavelength

1030 nm

Attenuation @ 532nm

<100 dB/km

Dispersion @ 532nm

1 ps/nm.km ± 0.5

Transmission Band**

300 nm

Mode field Diameter

39 μm ± 1

3dB bend loss radius

5 cm ± 2

**Attenuation lower than 100 dB/km for the 850-1150nm

3. STG-C-Er-7C

Hollow-Core Fiber optimized for 1550nm. Ideal for Erbium lasers.

Physical Properties

 

Core contour

Hypocycloïde with negative curvature parameter b=0.8*

Inner core Ø

61 μm ± 1

Outer fiber Ø

432 μm ± 3%

Fiber coating layer

Primary polymer coating

Optical Properties

 

Center Wavelength

1550 nm

Attenuation @ 532nm

<50 dB/km

Dispersion @ 532nm

1 ps/nm.km ± 0.5

Transmission Band**

400 nm

Mode field Diameter

42 μm ± 1

3dB bend loss radius

5 cm ± 2

**Attenuation lower than 100 dB/km for the 1375-1750nm

4. STGLO​-C-2μm-7C

Hollow-Core Fiber optimized for 2-3μm range.

Physical Properties

 

Core contour

Hypocycloïde with negative curvature parameter b>0.7*

Inner core Ø

56 μm ± 1

Outer fiber Ø

415 μm ± 3%

Fiber coating layer

Primary polymer coating

Optical Properties

 

Center Wavelength

2000 nm

Attenuation @ 532nm

60 dB/km

Dispersion @ 532nm

1 ps/nm.km ± 0.5

Transmission Band**

>350 nm

Mode field Diameter

42 μm ± 1

3dB bend loss radius

5 cm ± 2

**Attenuation lower than 100 dB/km for the 850-1150nm

STG Series Photonic Microcell

Our technology is based on Hollow-Core Photonic Crystal Fiber (HC-PCF) and the process of filling the fiber with a chosen gas to offer photonic functionalities such as (i) Optical frequency conversion, (ii) Ultra-high power pulsed laser delivery (iii) Laser pulse compression or (iv) Frequency standards.

A PMC is a stand-alone and modular component that consists of a HC-PCF filled with gas and fiber terminations. The presence of gas within an optical fibre on a micron scale provides a million-fold increase in the gas-laser efficiency compared to traditional lasing methods and opens up the unique ability for functionalization. For example, with a Raman gas one can produce new wavelengths and hence create new applications. There are different variants of HC-PCF used within the PMC family of components. The Inhibited-Coupling guiding HC-PCF such as Kagome fiber produces particularly good results with a high damage threshold and a very wide bandwidth.

The PMC comes in different forms tailored to either the applications or the laser power requirements or to specific housing requirements. Below is a list of the different PMC forms we can deliver.

1. ALL-FIBER PMC

An optical fiber made of a length of HC-PCF filled with gas and spliced to a solid optical fiber.

2. GAS-FILLABLE & TRAVEL STAGE MOUNTABLE PMC-TERMINATION

This PMC has at least one of its terminations exhibiting a gas-fillable cell. This cell is mountable on standard translation stages for quick and efficient laser coupling.

hollow core fiber hollow core fiber

3. TUBULAR CELL PMC-TERMINATION

This PMC has at least one of its terminations exhibiting a tubular cell. This cell can be mounted on and/or integrated in standard opto-mechanical holders or systems.

STG Beam Delivery System

STG-BDS is a new and user friendly module for high power laser beam delivery. It brings the outstanding fast lasers pulse energy and power handling of our fiber's technology in a ruggedized and pre-aligned module.

1. STG-BDS-Green Beam Delivery System

Physical Properties

Fiber length**

2 m , 3 m, 5 m

Output beam quality

M²<1.3

Gas/Vacuum connection

KF16

Fiber protection**

Metallic monocoil

Min bend radius

200 mm

Optical Properties

Working wavelength**

515 nm / 532 nm

Attenuation

<100 dB/km

Dispersion @ Working wavelength

1 ps/nm/km ± 0.5

Transmission band***

***Attenuation lower than 100 dB/km

>100 nm

Input beam requirement**

3 mm ± 0.1

Bend loss @ 20 cm bend radius

< 1 dB

2. STG-BDS-Yb&NdYag

Physical Properties

Fiber length**

2 m , 3 m, 5 m

Output beam quality

M²<1.3

Gas/Vacuum connection

KF16

Fiber protection**

Metallic monocoil

Min bend radius

200 mm

Optical Properties

Working wavelength**

1030 nm / 1064 nm

Attenuation

<50 dB/km

Dispersion @ Working wavelength

1 ps/nm/km ± 0.5

Transmission band***

***Attenuation lower than 100 dB/km

>200 nm

Input beam requirement**

2.9 mm ± 0.1

Bend loss @ 20 cm bend radius

< 1 dB

3. STG CombLas

More than 20 lasers in 1

Optical Properties*

 

Pump wavelength

532 nm

Spectral coverage

350-800 nm

Line spacing

17.6 Thz

Average output power

9 mW

 

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