中国激光, 2012, 39 (s2): s205006, 网络出版: 2012-12-31
四波混频效应全光波长转换系统性能的优化
Optimization of All Optical Wavelength Conversion System Based on Four Wave Mixing
光通信 波长转换系统 四波混频 转换效率 信噪比 功率代价 optical communications wavelength conversion system four-wave mixing conversion efficiency signal-to-noise ratio power penalty
摘要
全光波长转换器在全光网络中的应用能够避免波分复用网络的波长信道使用冲突,改善网络传输效率,提高网络的灵活性和容量,目前已成为全光网络研究的热点。半导体光放大器是全光波长转换器的首选器件。基于半导体光放大器四波混频效应的全光波长转换技术在严格透明的全光网络中最有前途,但是它的转换效率低,输出光信噪比较小。用OptiSystem仿真搭建了基于半导体光放大器四波混频效应的40 Gb/s归零差分相移键控码信号的全光波长转换器。为获得更高转换效率、光信噪比以及较低的功率代价,详细讨论了半导体光放大器注入电流、波长失谐、信号光与抽运光功率等参数值之间的关系,得到了该全光波长转换器的最优参数和最佳工作环境。
Abstract
All-optical wavelength converter can avoid wavelength conflict in wavelength division multiplexing channels, thus improving the transmission efficiency and increasing the network flexibility and capacity in all-optical networks. All-optical wavelength converter has become the research hotspot in recent years. Semiconductor optical amplifier (SOA) is the preferred choice for all-optical wavelength converter device. In the scenario of strict transparent all-optical network transmission, the all-optical wavelength converter utilizing the four-wave mixing effect of SOA is considered of greatest research value. A 40 Gb/s return-to-zero differential phase shift keying (RZ-DPSK) all-optical wavelength converter simulation system is built up based on four-wave mixing effect of SOA by OptiSystem software. With the aim to obtain higher conversion efficiency, higher optical signal-to-noise ratio and lower power penalty, the best parameters and best working environment are presented based on the discussion of the relationship among the parameters including injection current to SOA, wavelength detuning, signal and pump power.
宁帆, 孙凌宇, 席丽霞, 马永欣, 张晓光. 四波混频效应全光波长转换系统性能的优化[J]. 中国激光, 2012, 39(s2): s205006. Ning Fan, Sun Lingyu, Xi Lixia, Ma Yongxin, Zhang Xiaoguang. Optimization of All Optical Wavelength Conversion System Based on Four Wave Mixing[J]. Chinese Journal of Lasers, 2012, 39(s2): s205006.