一种50GHz信道间隔光通道监测仪的研究

Research on an optical channel monitor working at 50 GHz channel intervals

为实现50GHz信道间隔的密集波分复用(DWDM)系统中的光通道性能监测,文章提出一种基于衍射光栅的OCM(光通道监测仪)结构,介绍了该OCM的工作原理。从理论上对其工作范围、响应时间、波长分辨率和通道分辨能力进行了计算和分析,并制作了样品进行实验测试。结果表明,对于传输速率为10Gbit/s/40Gbit/s混合传输的50GHz信道间隔的DWDM系统,该OCM可以对波长、功率性能进行准确监测。

For the purpose of realizing the optical channel monitoring in WDM systems with 50 GHz channel intervals,we present a design of diffractive grating-based Optical Channel Monitor（OCM） and introduce its working principle.Then we calculate and analyze its insertion loss,working range,response time,wavelength and channel resolutions and conduct experimental tests on the sample.The results show that this OCM module can accurately monitor the channel wavelength and power performance of the WDM systems at 50 GHz intervals and with hybrid transmission rates of 10 Gbit/s/40 Gbit/s.