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Optical Engineering

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
Author(s): Chuanfen Feng; Jian Wu; Junyi Zhang; Kun Xu; Jintong Ling
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Paper 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.

Paper Details

Date Published: 1 October 2007
PDF: 4 pages
Opt. Eng. 46(10) 105004 doi: 10.1117/1.2790905
Published in: Optical Engineering Volume 46, Issue 10
Show Author Affiliations
Chuanfen Feng, Beijing Univ. of Posts and Telecommunications (China)
Jian Wu, Beijing Univ. of Posts and Telecommunications (China)
Junyi Zhang, Beijing Univ. of Posts and Telecommunications (China)
Kun Xu, Beijing Univ. of Posts and Telecommunications (China)
Jintong Ling, Beijing Univ. of Posts and Telecommunications (China)


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