高性能低成本的C+L波段掺铒光纤光源

Low cost high capability C ＋ L broad bandwidth erbium-doped fiber sourcesfiber optics ; C ＋ L band ; erbium-doped fiber; fiber loop mirror ; amplified spontaneous emission

为了得到一种高性能的C＋L波段的宽带掺铒光纤光源，用一个980nto和一个1480nm激光二极管作为抽运源，用两个3dB宽带耦合器作为光纤反射镜，同时利用功率控制电路让光源输出光稳定，对设计的光源进行了实验和理论验证，获得了功率为168．67row（22．27dBm）、带宽达到80．701nm（1525．112nm～1605．813nm）的C＋L波段宽带光源。结果表明，开始用两个980nm和一个1480nm二极管作为抽运源，之后改为一个980nm和一个1480nm二极管作为抽运源，并没有减少光源的输出功率，也没有改变稳定性。这一结果对减少光源的成本、提高光光转换效率，具有实际价值。

In order to obtain a broadband high performance C ＋ L band erbium-doped fiber light source, using 980nm and 1480nm laser diodes as the pumping sources, with two 3dB couplers as broadband fiber mirror, taking advantage of the power control circuit, a stable fiber light source was obtained in experiments after analysis. Its power was 168.67mW（ 22. 27dBm）with bandwidth of 80. 701nm（ 1525. 112nm - 1605. 813nm）. In the experiments with two 980nm laser diodes and a 1480nm diode as the pumping sources at first,then replaced by a 980nm and a 1480nm diode the output power did not reduce and the stability kept the same. This result is valuable for reducing the cost and promoting the photonic-photonic conversion efficiency.