Single Frequency Fiber Laser
Connet Laser Technology is the only one in the industry that can independently develop 'optimized traveling wave cavity' type
and 'distributed feedback linear cavity (DFB)' kHz class single frequency fiber laser.
We have completely independent intellectual property rights in China, both types of single-frequency fiber lasers are unique in their ability
to meet the needs of high-precision fiber optic sensing, coherent communications, LIDAR, and scientific research.
The output power of the CoSF-R and CoSF-D single-frequency fiber laser seed is on the order of mW.
With the high-power narrow-linewidth fiber amplifier optimized by Connet, it can realize the power output of the hundred-watt level.
CoSF-R series single frequency fiber laser adopts the unique 'optimized traveling wave cavity' design to eliminate the standing wave hole-burning phenomenon which is easy to occur in the linear cavity fiber laser. Thanks to the ultra-narrow bandwidth all-fiber filter designed by Connet and the unique polarization control technology, the polarization hole-burning effect can be eliminated. CoSF-R can achieve the stable linear polarization, single longitudinal mode and single frequency laser output with a real narrow linewidth down to even <1kHz.
CoSF-D series single frequency fiber laser adopts the 'distributed feedback linear cavity (DFB)' design and fabricates the high-precision phase-shifted fiber gratings on rare earth doped active fibers to ensure the GHz FSR via the short straight cavity design and meanwhile guarantee the single longitudinal mode output.