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ClearCut kW Package-Free Fiber Bragg Grating

ClearCut kW Package-Free Fiber Bragg Grating

The ClearCut kW Package-Free Fiber Bragg Grating products are ultra low insertion loss fiber bragg gratings for high power fiber lasers. With AFR's ClearCut design and special process, the FBG can handle kilowatt level pump power and signal power with recoated only.
Product Detail

Key Features

Applications

High Power Handling

Fiber Laser

Low Temperature Slope


Exceptional Reliability


Specifications

 Parameter

Unit



Value


 Center Wavelength

nm

1018, 1030, 1064, 1070, 1080, 1090

 Tolerance on Center Wavelength

nm

± 1.0

 Max. Wavelength Mismatch (OC Relative HR)

nm

0.2

 High Reflector (HR) / Output Coupler (OC)

/

HR

OC

 Peak Reflectivity

%

≥ 99.0

(5.0 - 30.0) ± 2.0

 Reflection Bandwidth at 95%

nm

1.5 - 4.0

/

 Reflection Bandwidth at 50%

nm

/

0.2 - 2.0

 Tolerance on Reflection Bandwidth

nm

0.1 - 0.4

0.1 - 0.2

 Min. Side Mode Suppression Ratio

dB

20

10

 Fiber Core/Cladding Dimension

μm

10/125

14/250

20/400

25/400

 Temperature Slope Suspended in Air 1

℃/W

≤ 0.1

≤ 0.03

≤ 0.02

 Max. Core Signal Power Handling 2

W

300

1000

3000

 Max. Clad Pump Power Handling

W

450

1500

3000

 Fiber Type

/

PM or Non-PM

 Recoating Length

mm

40 - 60

 Storage Temperature

- 40 to + 85


1For total power: the signal power in the core and the pump power in the cladding. (The slope efficiency is about 70%)
2The grating area should be kept on active cooling plates. (The cooling temperature ≤ 25 ℃)

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