Photonics Research, 2016, 4 (6): 06000245, Published Online: Dec. 23, 2016  

All-optical two-channel polarization-multiplexing format conversion from QPSK to BPSK signals in a silicon waveguide Download: 1062次

Author Affiliations
Centre for Optical and Electromagnetic Research, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310058, China
Abstract
All-optical two-channel format conversion is proposed and experimentally demonstrated from a 40 Gbit/s polarization multiplexing (Pol-MUX) non-return-to-zero quadrature phase-shift keying (QPSK) signal to Pol-MUX binary phase-shift keying (BPSK) signals by using phase-doubled four-wave mixing effects with two polarization-angled pumps in a silicon waveguide. The eye diagrams and constellation diagrams of the original QPSK sequences and the converted BPSK sequences of each channel are clearly observed on the two polarization states. Moreover, the bit error rates (BERs) of the two converted idlers are measured. The power penalties of all these converted BPSK sequences on both X and Y polarization states are less than 3.4 dB at a BER of 3.8 × 10?3.(20130101110089); Natural Science Foundation of Zhejiang Province (LY14F050006).

Xianglian Feng, Zhihang Wu, Xiaoyan Wang, Sailing He, Shiming Gao. All-optical two-channel polarization-multiplexing format conversion from QPSK to BPSK signals in a silicon waveguide[J]. Photonics Research, 2016, 4(6): 06000245.

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