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Optical Engineering

Demonstration of 40  Gbit/s all-optical return-to-zero to nonreturn-to-zero format conversion with wavelength conversion and dual-channel multicasting based on multiple cross-phase modulation in a highly nonlinear fiber
Author(s): Zhan-Qiang Hui; Jian-Guo Zhang; Jia-Min Gong; Meng Liang; Mei-Zhi Zhang; Yi Yang; Feng-Tao He; Ji-Hong Liu
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Paper Abstract

We propose and experimentally demonstrate all-optical return-to-zero (RZ) to nonreturn-to-zero (NRZ) format conversion by using multiple cross-phase modulation (MXPM) in a highly nonlinear fiber. The proposed all-optical format converter can perform simultaneously wavelength conversion and dual-channel signal multicasting. This is achieved by properly filtering two broadened probe spectra induced by MXPM between the RZ signal and continuous-wave double probe lights. We also study experimentally wavelength tunability for the proposed format converter at 40  Gbit/s , which is feasibly achieved by varying the central wavelengths of the double probe lights. Our results show that a wide operation wavelength range of 24 nm is obtained. By monitoring eye diagrams, the converted 40  Gbit/s NRZ signals can have an extinction ratio of 10.9 dB and the Q -factor of 6.1, respectively. Moreover, the proposed scheme is simple and robust, which is promising for high-speed optical fiber communication applications.

Paper Details

Date Published: 7 May 2013
PDF: 8 pages
Opt. Eng. 52(5) 055002 doi: 10.1117/1.OE.52.5.055002
Published in: Optical Engineering Volume 52, Issue 5
Show Author Affiliations
Zhan-Qiang Hui, Xi'an Univ. of Posts & Telecommunications (China)
Jian-Guo Zhang, London South Bank Univ. (United Kingdom)
Jia-Min Gong, Xi'an Univ. of Posts & Telecommunications (China)
Meng Liang, Xi'an Institute of Posts and Telecommunications (China)
Mei-Zhi Zhang, Xi'an Univ. of Posts & Telecommunications (China)
Yi Yang, Xi'an Univ. of Posts & Telecommunications (China)
Feng-Tao He, Xi'an Univ. of Posts & Telecommunications (China)
Ji-Hong Liu, Xi'an Univ. of Posts & Telecommunications (China)


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