The problem of laser diode degradation was particularly troublesome.
激光二级管的退化是一个特别麻烦的问题。
2
At the same time, the preservation technology problem of inorganic laser liquid for long time is solved and the optical performance degradation for the inorganic laser liquid is avoided effectively.
同时，很好地解决了无机激光液体的长时间保存技术问题，有效地避免了激光液体光学性能的退化。
3
The alignment of laser beam to fiber end face and degradation of beam quality can increase the coupling losses. This paper analyzes their effects to the coupling efficiency.