光子学报, 2014, 43 (5): 0506003, 网络出版: 2014-06-03  

基于半导体光放大器垂直双泵浦对偏振复用正交相移键控信号波长变换的性能研究

Research on All-optical Wavelength Conversion Based on Orthogonal Dual-pump Four-wave Mixing in Semiconductor Optical Amplifier for Polarization Multiplexing Quadrature Phase Shift Keying Signals
作者单位
湖南大学 信息科学与工程学院 微纳光电器件及应用教育部重点实验室, 长沙 410082
摘要
针对偏振复用相位调制信号的全光波长变换特性问题,基于半导体光放大器中四波混频效应,建立了对偏振复用正交相移键控信号的全光波长变换理论模型.根据理论分析,建立了仿真系统,仿真结果表明:泵浦光与信号光之间的频率间隔、偏振复用信号中的一个信号与一号泵浦光的偏振夹角对系统转换效率和信号质量有影响;波长转换过程中交叉相位调制产生的相位噪音会对信号质量有影响,且当泵浦光功率较大、泵浦光功率远大于信号光功率时,交叉相位调制效应的影响较小,仿真结果与理论分析一致.本文研究方法和相关结论对其它偏振复用信号基于半导体光放大器四波混频效应的波长变换研究有一定的参考价值.
Abstract
Based on orthogonal dual-pump four wavelength mixing in an semiconductor optical amplifier,theorectical model of all-optical wavelength conversion for polarization multiplexing quadrature phase shift keying signals was set up for studing the characteristics of wavelength conversion for polarization multiplexing phase-modulated signals. The simulation system was built based on the theoretical analysis. Results show that the frequency spacing between the pump and signal lightwave, the polarization angle between pump1 and one of the polarization multiplexing signals have effects on the converion efficiency and the quality of the signals; and the phase noise generated by cross phase modulation in wavelength conversion also has effect on the quality of the signals, and when the power of two pumps is much larger than that of the signal lightwave, the cross phase modulation has small effect on the quality of the signals. The simulation results are consistent with the theoretical analysis. The methods and some results can be useful to research wavelength conversion system for other polarization multiplexing signal based on four wavelength mixing in SOA.
参考文献

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周慧, 何晶, 陈林. 基于半导体光放大器垂直双泵浦对偏振复用正交相移键控信号波长变换的性能研究[J]. 光子学报, 2014, 43(5): 0506003. ZHOU Hui, HE Jing, CHEN Lin. Research on All-optical Wavelength Conversion Based on Orthogonal Dual-pump Four-wave Mixing in Semiconductor Optical Amplifier for Polarization Multiplexing Quadrature Phase Shift Keying Signals[J]. ACTA PHOTONICA SINICA, 2014, 43(5): 0506003.

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