期刊
OPTICS EXPRESS
卷 22, 期 5, 页码 5029-5036出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.22.005029
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资金
- German Research Foundation (DFG) [SFB787]
- Danish Research Council for Technology and Production Sciences [project 09-066562]
- Villum Fonden via the NATEC Centre
- Villum Fonden [00008692] Funding Source: researchfish
Phase regeneration of differential phase-shift keying (DPSK) signals is demonstrated using a silicon waveguide as nonlinear medium for the first time. A p-i-n junction across the waveguide enables decreasing the nonlinear losses introduced by free-carrier absorption (FCA), thus allowing phase-sensitive extinction ratios as high as 20 dB to be reached under continuous-wave (CW) pumping operation. Furthermore the regeneration properties are investigated under dynamic operation for a 10-Gb/s DPSK signal degraded by phase noise, showing receiver sensitivity improvements above 14 dB. Different phase noise frequencies and amplitudes are examined, resulting in an improvement of the performance of the regenerated signal in all the considered cases. (C) 2014 Optical Society of America
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