All-fiber Mach–Zehnder interferometer for DWDM filter direct group-delay measurement
All-fiber Mach–Zehnder interferometer for DWDM filter direct group-delay measurement
复制标题
用于 DWDM 滤波器直接群延迟测量的全光纤马赫-曾德干涉仪
DOI：
10.1016/j.optcom.2006.04.004
复制
发表时间：
2006
影响因子：
2.4
通讯作者：
Cheng
中科院分区：
文献类型：
--
作者：
Ya;Cheng
密集波分复用（DWDM）滤波器的群时延在光通信中变得越来越重要。提出了一种基于马赫-曾德尔干涉仪的直接测量光学薄膜滤波器群延迟的方法。干涉仪提供了一个简单，准确和物理直观的图片发生了什么宽带光脉冲在普通的光学材料。以100 GHz的DWDM滤波器为例进行了测试，结果表明，测量时间和高斯窗的选择是两个重要因素。
The group delay of the dense wavelength division multiplexing (DWDM) filter is becoming more important in optical communication. This study proposes a Mach–Zehnder interferometer based on the direct group delay measurement of an optical thin film filter. The interferometer provides a simple, accurate and physically intuitive picture of what happens to broadband optical pulses on common optical materials. A 100GHz DWDM filter was used as an example in the measurement and showed that the time of measurement and selection of Gaussian window were two important factors.