1550nm Long Pulsed Single Frequency Erbium Fiber Laser creating for wind monitoring applications.These eye-safe fiber laser are designed for Heterodyne LiDAR Systems by long pulse operation ideal.Highly robust and reliable, the fiber laser unit can be integrated into complex systems and can work in harsh environmental conditions.The long pulsed single frequency polarization-maintaining fiber laser is a modularized pulsed fiber laser designed for long-distance Coherent Doppler Wind LiDAR application. Based on eye-safe operating wavelength, the fiber laser is suited for long-pulse applications, can produce a single-mode linearly polarized output.

Integrated with our particularly designed single frequency narrow linewidth seed laser source, the narrow linewidth can be down to 5kHz. Utilizing the cascaded acousto-optic modulator (AOM) to produce pulse signal with high turn-off ratio, the extinction ratio can exceed 100dB.

This single frequency fiber laser adopts design of all polarization-maintaining (PM) fiber, achieving high polarization extinction ratio (PER) output. According to the requirements of application, high power three-port optical circulator can be integrated at the output end.