一种新型非等延迟OFDL的理论分析

THEORETICAL ANALYSIS OF A NEW TYPE NON-EQUAL DELAY TIME OFDL STRUCTURE

对常规的光纤延迟线分析方法作了初步综述。在此基础上,提出了一种级联非等延迟单元的新型结构形式。以前馈阵列为例,采用该结构仅用n+1个抽头实现了2~N个抽头的常规抽头延迟线功能,具有重要的实用价值和应用前景。

The analysis method of the ordinary optical fiber delay line (OFDL)is sumerized briefly. Based on that, a new type structure with the cascaded variable delay interval OFDL unit is brought up. For feedforword lattic, using the new type strcture, the function of ordinary tapped delay line with 2~N taps can be realized, only need N+1 taps.