In the process of researching high-energy, high-power lasers, with the pump power raised, the threshold will raise, the efficiency will reduce, the refractive index distribution will be non-uniform.
在研制高能量，高功率激光器的过程中，人们发现当泵浦功率提高时，激光器的阈值会升高，效率会降低，折射率分布也会变得不均匀。
youdao