Amplitude Regenerative Characteristics of RZ-DPSK Wavelength Converter Based on Four-Wave Mixing in SOA

JIANG Huan; WEN He; HAN Liu-Yan; GUO Yi-Li; ZHANG Han-Yi

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Amplitude Regenerative Characteristics of RZ-DPSK Wavelength Converter Based on Four-Wave Mixing in SOA

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We investigate the phase-preserving amplitude regenerative characteristics of the return-to-zero (RZ) differentialphase-shift-keying (DPSK) wavelength conversion based on four-wave mixing (FWM) in a semiconductor optical amplilier (SOA).The Q-factor and the optical signal-to-noise ratio (OSNR) before and after conversion are experimentally obtained and analysed in different input noise power leveis.In both the continuous-wave and synchronous clock pumping cases,we find that there is amplitude damping in the FWM conversion due to the gain saturation of SOA,which can suppress the amplitude fluctuation of the converted DPSK signal before and after demodulation.We have achieved 2-dB Q penalty improvement in our experiment demonstration of 10Gbit/s RZ-DPSK signal with OSNR lower than 19dB.

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《中国物理快报：英文版》 |2008年第5期|1697-1700|共4页
作者
JIANG Huan; WEN He; HAN Liu-Yan; GUO Yi-Li; ZHANG Han-Yi;
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Department of Electronic Engineering,Tsinghua University,Beijing 100084;

Department of Electronic Engineering,Tsinghua University,Beijing 100084;

Department of Electronic Engineering,Tsinghua University,Beijing 100084;

Department of Electronic Engineering,Tsinghua University,Beijing 100084;

Department of Electronic Engineering,Tsinghua University,Beijing 100084;

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中图分类物理学;
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Amplitude Regenerative Characteristics of RZ-DPSK Wavelength Converter Based on Four-Wave Mixing in SOA

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