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
Phase modulation Phase modulation Nonlinear optical signal processing Nonlinear optical signal processing Nonlinear optics Nonlinear optics four-wave mixing four-wave mixing Nonlinear optics Nonlinear optics integrated optics integrated optics
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.