From the comparison of the fiber lengths, the pump power and the gain flatness for same gain of FRA, that DCF have been chosen as the activemedium of LRA.
比较在相同增益时的泵浦功率、光纤长度和增益平坦性，从而选择色散补偿光纤作为LRA的增益介质。
2
The microresonator includes an activegainmedium and a Q-switch that extend lengthwise between the opposed end faces of the microresonator.
把微包括一个活跃的增益介质和Q开关，扩展反对结束之间的纵向面临的微共振器。
3
The electrode structure, metal wall action on the activemedium cooling, and the gain distribution have been studied.