Wang Jian, Sun Junqiang, Sun Qizhen
Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China.
Opt Lett. 2007 Jun 1;32(11):1477-9. doi: 10.1364/ol.32.001477.
We propose and simulate two novel schemes of 40 Gbit/s format conversion from non-return-to-zero to return-to-zero based on cascaded second-harmonic generation and difference-frequency generation in a periodically poled lithium niobate loop mirror. We investigate the conversion performance, including eye diagrams, conversion efficiency, pulse width, Q-factor, extinction ratio, and tunability. The proposed schemes can perform single-to-dual-channel format conversion. In addition, it is found that simultaneous multichannel format conversion as well as tunable multicasting format conversion can potentially be implemented with great flexibility.
我们提出并模拟了两种基于周期极化铌酸锂环形镜中级联二次谐波产生和差频产生的从非归零到归零的40 Gbit/s格式转换的新颖方案。我们研究了转换性能，包括眼图、转换效率、脉冲宽度、品质因数、消光比和可调谐性。所提出的方案可以执行单通道到双通道格式转换。此外，发现同时多通道格式转换以及可调谐多播格式转换有可能以极大的灵活性实现。
