Theory of fiber optical parametricamplifiers (FOPAs) is introduced and the expression for the gain of FOPAs is deduced from the basic coupled wave equations.
介绍了光纤光学参量放大器的理论，基于耦合波方程推导出光纤光学参量放大器的增益表达式。
2
Two very pithy and powerful analytical expressions for saturated signal gain and signal output power of fiber optical parametricamplifiers are educed with numerical analysis.