Theory of fiberoptical parametric amplifiers (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
In the health monitoring of structures, Fiberoptical sensor has been used widely due to its good performance.
在结构健康状态监测中，光纤传感器因其良好的性能而得以广泛运用。
3
High power double -clad fiber amplifiers have widespread applications in fiber sensing, fiberoptical communication system, spectral measurement, inertial confinement fusion, and so on.