gain coefficient的用法和樣例：
例句
- The demand of high-power Raman pump light in FRAs is due to the low gain coefficient of the existing optical fibers.
光纖拉曼放大器對於高功率拉曼激發光源的需求原因，來自於現行廣為鋪設的光纖之中，拉曼增益係數相對為低的理由。 - When the interaction length or gain coefficient is changed, the SBS threshold is changed, and the intensity value of optical limiting is altered.
當改變相互作用長度或者介質增益係數，即可以改變受激布里淵散射的產生閾值，進而改變輸出脈衝空間限幅的幅值。
