激光玻璃与包边玻璃的折射率匹配

Cladding Glass' Refract Index Match up to the Laser Glass

从理论上详细探讨了基质激光玻璃与包边玻璃的折射率匹配与剩余反射率的关系,并从实验上验证了折射率匹配越好,吸收系数与包边玻璃厚度的乘积越大,则剩余反射率越低,从而对激光放大器中寄生振荡的抑制越好,增益也就越高。

We theorically discussed the relation between the refractive index matching and the residual reflectance of the laser glass and cladding glass. The experimental results show that the better the refractive index matching and the higher product of the absorption coefficient and the cladding glass thickness, the lower the residual reflection, which result in the better restraint of the parasitic oscillation in amplified spontaneons emission（ASE ） and the higher gain from the laser system.