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利用YVO4双折射晶体 ,设计了一种新型光通讯密集波分复用 (DWDM)系统波长监控的方案 ,分析了其工作原理 ,并对方案的可行性进行了实验研究。理论和实验结果均表明 ,这种方案能够用于整个C波段的DWDM系统工作波长监控与锁定。这种方案与使用F P标准具的透射谱进行波长监控的方法相比 ,具有标准工作波长容易判定、监控灵敏度倍增和易于集成等优点
By using YVO4 birefringent crystal, a new scheme of wavelength monitoring of optical communication Dense Wavelength Division Multiplexing (DWDM) system was designed. Its working principle was analyzed and the feasibility of the scheme was experimentally studied. Both theoretical and experimental results show that this scheme can be used to monitor and lock the working wavelength of DWDM system in C-band. Compared with the method of wavelength monitoring using the transmission spectrum of F P etalon, this solution has the advantages of easy determination of standard operating wavelength, doubling of monitoring sensitivity and easy integration