相位条件 meaning in English

phase condition

In this work , based on the threshold condition of the fiber grating external cavity semiconductor laser ( fgesl ) which the phase of the fiber grating has been included , the effect of the temperature variation and the fg external cavity length on the lasing wavelength of the fgesl has been investigated theoretically . in addition , we have used the phase condition of fgesl to get the longitudinal mode distribution of fgesl , then the influence of the injected current on the output characteristics of fgesl has been studied
基于此，本文中利用阳实际的反射相位分布，计及半导体激光器( ld ) 、外腔及光纤光栅( fg )三者的共同作用，根据fgesl满足的闽值条件，从理论上研究了温度及外腔长度的变化对fgesl激射波长的影响;根据fgesl中纵模所满足的相位条件得到其纵模分布后，利用fgesl满足的多模速率方程，研究了ld的注入电流对fgesl输出特性的影响。