一种优越的光外差中频稳定装置

一种优越的相干光通信系统中频稳定装置已经研制出来.该装置可以实现对光外差中频频率的高度稳定,且所稳定的光外差中频频率可以自由调节.本装置用于一个采用1.52μmHe-Ne气体激光器的相干光纤通信系统中,光外差中频在整个TV频道范围内都能跟踪稳定.相对于光频的频率稳定度优于10-9.通信系统传输的图象信号得到了满意的稳定接收.

A preferable set for stabilizing the intermediate frequencies(IF)of optical heterodyne

A preferable set for stabilizing the intermediate frequencies of optical heterodyne in optical coherent communications system is developed.A high stability for intermediate frequencies of optical heterodyne may be realized by this set,and stabilizing intermediate frequencies can be adjusted freely.In the coherent optical fiber communication system adopting 1.52μm He Ne lasers,the tracking stabilization of optical heterodyne intermediate frequencies may be covered in the range of full TV channel when this set is used.Relative to the optical frequency,the frequency stability is better than 10^-9.