The LIV test of laser is realized by controlling the current source and high-speed optical power meter. According to the test results, relevant parameters such as Ith and slope efficiency of the laser are analyzed, the optical power value and spectral characteristics of the laser at a fixed current

The automatic coupling and scan testing system provides a 1 (light source) driving 8 (client) mode. Each client has a completely independent coupling function, and after the coupling is completed, it is switched to the test mode. Each client has its own power meter to achieve completely independent