论文部分内容阅读
研究了基于半导体光放大器(SOA)结合延迟干涉仪(DI)结构的全光波长转换。分析了SOA-DI结构的工作原理和DI参数的作用,进行了10 Gb/s和40 Gb/s归零码全光波长转换实验研究。实验结果表明,基于SOA中交叉增益调制(XGM)效应实现的波长转换为反相转换,输出信号消光比较低,当工作速率较高时波长转换信号质量明显恶化。而SOA-DI结构可实现同相波长转换并可改善波长转换信号的消光比,从而改善单个SOA实现波长转换的性能并提高系统的工作速率,该结构还具有结构简单、可光子集成等优点。
The all-optical wavelength conversion based on semiconductor optical amplifier (SOA) combined with delay interferometer (DI) structure is studied. The working principle of the SOA-DI structure and the role of the DI parameters are analyzed. Experimental research on the all-optical wavelength conversion of the zero-gated 10 Gb / s and 40 Gb / s data is carried out. The experimental results show that the output signal extinction ratio is low based on the wavelength conversion of the cross-gain modulation (XGM) effect achieved in the SOA, and the signal quality of the wavelength conversion is obviously deteriorated when the operating rate is high. However, the SOA-DI structure can realize in-phase wavelength conversion and improve the extinction ratio of the wavelength conversion signal, so as to improve the performance of a single SOA for wavelength conversion and improve the working speed of the system. The structure also has the advantages of simple structure and photonic integration.