FBG
1.5um High Power Chirped FBG for Fiber Laser
description1
Key Features
● Extremely Low Temperature Slope
● High Conversion Efficiency
● High Power Handling
● Outstanding Reliability
● Wide Variety of Fiber Types
Applications
● High Power Fiber Laser
● Pulsed Fiber Laser
Specifications
Parameter |
Unit |
Specification |
Typical Central Wavelength1 |
nm |
1550, 1560 |
Tolerance on Central Wavelength |
nm |
1 |
Type of Reflector |
|
HR LR |
Peak Reflectivity2 |
% |
>99.5 10±2 |
FWHM2 (3dB) |
nm |
0.5~3 0.1~1 |
Side Mode Suppression Ratio |
dB |
20 10 |
Wavelength Mismatch (LR to HR) |
nm |
0.2 |
Fiber type3 |
|
SM-1550-GDF |
Power Handling of Pump |
W |
50 |
Input/output Fiber Length |
m |
1 |
Package Type |
|
Recoated Only |
|
1. Other central wavelength available on request. 2. Other bandwidth and reflectivity available on request. 3. Other fiber types available on request. | ||
High Power Fiber Laser Configuration
Package Dimensions
product description
The GKER high-quality 1.5µm fiber grating reflectors, also known as Fiber Laser cavity mirrors, are advanced optical components designed for use in 1.5µm wavelength high power fiber lasers. These reflectors play a critical role in the construction of fiber laser cavities by providing precise reflection of specific wavelengths while allowing other wavelengths to pass through. Here's a summary of their key features and benefits:
Specialty Double Clad Optical Fiber: These reflectors are written in specialty double clad optical fibers, which are designed to handle high power levels effectively. The double clad design allows for efficient core pumping, which is essential for high power fiber lasers.
Optimized Chirped Fiber Bragg Grating (FBG) Writing Technology: The use of optimized chirped FBG writing technology ensures that the grating reflectors have a tailored reflection spectrum that can be customized for specific laser applications. The chirped grating helps to broaden the bandwidth and control the dispersion characteristics of the reflected light.
Designed for 1.5µm High Power Fiber Lasers: These reflectors are specifically designed for high power fiber lasers operating at a wavelength of 1.5µm. This wavelength is commonly used in fiber lasers due to its efficient pumping sources and good material compatibility.
Single-Mode to Large Mode Area (LMA) Fiber Compatibility: The reflectors are suitable for use with both single-mode fibers and large mode area (LMA) fibers. LMA fibers are used to mitigate nonlinear effects and handle higher power levels in fiber lasers.
High Pump Power Handling Capacity: With a pump power handling capacity of more than 50W, these reflectors are designed to withstand the high power levels typically found in industrial and scientific fiber laser applications.
Customizable Bandwidths and Reflectivity: GKER offers a variety of bandwidths and accurately matched high and low reflectivity gratings to suit different laser applications. This customization allows for the optimization of laser performance based on specific requirements.