光纤耦合器的差频特性及其应用

通过对 2× 2光纤耦合器的差频特性分析 ,设计了一种结构新型的、可用于校正干涉信号畸变分量的全光纤干涉系统 ,该系统在振动特性测试和语音信号的全光纤采集。

纵向塞曼激光器的磁场与频差特性

本文研究了纵向塞曼激光器的磁场、频差与腔的损耗的关系,并计算出在腔长和毛细管直径一定的情况下可能获得的最大频差。

双折射双频激光器频差特性分析

用激光原理和晶体光学原理分析了腔内加旋光晶体时输出光的频差特性。分析表明：当晶片旋转时，理论计算的频差永远小于由晶体两本征模通过晶片位相差所决定的频差，有一特殊因子G2起作用。G2的物理意义是激光本征模在晶体两本征模上的投影比的平方。这表明一个激光本征模在通过晶体时是部分以快模形式，部分以慢模形式，实际位相延迟介于两者之间。由于两者都介于快模和慢模之间，因而实际频差小于由快模和慢模决定的频差。理论计算同实验符合得很好。从而解决了这一多年没有解决的问题。

Frequency Response Computation and Error Analyses

Aim To derive the error formulae for the algorithm of frequency response computation. Methods This algorithm was introduced theoretically, the error sources of the algorithm were analyzed and the formulae of the main error were derived. Results The repeatability and stability of the processing results of the algorithm are better than those measured by 1250 Frequency Analysor. Conclusion The error formulae derived are theoretically right and practically valid.