Ettabib M A, Lacava C, Liu Z, Bogris A, Kapsalis A, Brun M, Labeye P, Nicoletti S, Syvridis D, Richardson D J, Petropoulos P
Opt Express. 2017 Feb 20;25(4):3252-3258. doi: 10.1364/OE.25.003252.
We report a nonlinear signal processing system based on a SiGe waveguide suitable for high spectral efficiency data signals. Four-wave-mixing (FWM)-based wavelength conversion of 10-Gbaud 16-Quadrature amplitude modulated (QAM) and 64-QAM signals is demonstrated with less than -10-dB conversion efficiency (CE), 36-dB idler optical signal-to-noise ratio (OSNR), negligible bit error ratio (BER) penalty and a 3-dB conversion bandwidth exceeding 30nm. The SiGe device was CW-pumped and operated in a passive scheme without giving rise to any two-photon absorption (TPA) effects.
我们报道了一种基于适用于高光谱效率数据信号的硅锗波导的非线性信号处理系统。展示了基于四波混频（FWM）的10吉波特16正交幅度调制（QAM）和64-QAM信号的波长转换，转换效率（CE）小于-10分贝，闲频光信噪比（OSNR）为36分贝，误码率（BER）代价可忽略不计，3分贝转换带宽超过30纳米。该硅锗器件采用连续波泵浦并以无源方式运行，不会产生任何双光子吸收（TPA）效应。
