1 October 2007 Two types of all-optical non-return-to-zero to return-to-zero format conversions exploiting a semiconductor optical amplifier assisted with blue-shifted filtering
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Optical Engineering, 46(10), 105004 (2007). doi:10.1117/1.2790905
Abstract
Two types of all-optical non-return-to-zero to return-to-zero (NRZ-to-RZ) format conversion schemes are presented by exploiting semiconductor optical amplifier (SOA) nonlinearities, including nonlinear polarization rotation (NPR) assisted with blue-shifted filtering (NPR-BF) and cross-phase modulation (XPM) assisted with blue-shifted filtering (XPM-BF). Experimental results show that the power penalties of the NPR-BF and XPM-BF schemes are about -0.5 dB and 1 dB, respectively. Furthermore, experimental results also show that the converted output extinction ratio (ER) of the NPR-BF scheme is higher than that of the XPM-BF scheme under the same conditions.
Chuanfen Feng, Jian Wu, Junyi Zhang, Kun Xu, Jintong Ling, "Two types of all-optical non-return-to-zero to return-to-zero format conversions exploiting a semiconductor optical amplifier assisted with blue-shifted filtering," Optical Engineering 46(10), 105004 (1 October 2007). https://doi.org/10.1117/1.2790905
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