The 1927nm Fiber Laser Module of Techwin Laser use the Master Oscillator Power-Amplifier (MOPA) structure or the direct resonator cavity structure design to achieve the high power output.The generally adopted pumps are the semiconductor or fiber lasers in the bands of 793nm and 1570nm. The output polarization can be linear or random. This laser is suitable for the applications of device testing, medical treatment, remote sensing, LiDAR and mid-infrared pumping, etc.