叠积分 meaning in Chinese

iterated integral
repeated integral

For the coupling between the laser diode and the tapered single - mode fiber , the overlap integral is used to compute the coupling efficiency on the basis that the laser diode outputting mode field and the fiber eigenmode field is approximated to basic - mode gauss field . and based on the same approximation , the coupling efficiency between the semi - tapered fiber and the laser diode is calculated by using the ray - traced method . the parameters are analyzed for the effect on the coupling efficiency and give the theory foundation to optimize the design of the tapered fiber coupling system
首先通过对半导体激光器输出模式场和光纤本征模式场的高斯基模近似，利用交叠积分计算了锥形单模光纤与激光器的耦合效率问题；其次依据以上近似，利用光线迹踪法计算了半锥形多模光纤与激光器的耦合效率问题，给出各个参数对耦合效率的影响和作用，为优化设计锥形光纤耦合系统提供了理论依据。