Wavelength Conversion Characteristics of SOA-MZI Based All-Optical NRZ-OOK/RZ-BPSK Modulation Format Converter

Suresh M. NISSANKA  Ken MISHINA  Akihiro MARUTA  Shunsuke MITANI  Kazuyuki ISHIDA  Katsuhiro SHIMIZU  Tatsuo HATTA  Ken-ichi KITAYAMA  

IEICE TRANSACTIONS on Communications   Vol.E91-B   No.7   pp.2160-2164
Publication Date: 2008/07/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.7.2160
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Joint Special Section on Opto-electronics and Communications toward NGN and beyond)
semiconductor optical amplifier,  modulation format converter,  wavelength converter,  Mach-Zehnder interferometer,  Binary Phase Shift Keying (BPSK),  

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All-optical wavelength conversion and modulation format conversion will be needed in the next generation high-speed optical communication networks. We have proposed and successfully demonstrated the error free operation of all-optical modulation format conversion from NRZ-OOK to RZ-BPSK using SOA based MZI wavelength converter. In this paper, we experimentally investigate the wavelength conversion characteristics of the proposed NRZ-OOK/RZ-BPSK modulation format converter. The results show that error free modulation format conversion is possible over the entire C band.