Polarization Insensitive SOA-PLC Hybrid Integrated Michelson Interferometric Wavelength Converter and Its Application to DWDM Networks

Rieko SATO  Toshio ITO  Katsuaki MAGARI  Akira OKADA  Manabu OGUMA  Yasumasa SUZAKI  Yoshihiro KAWAGUCHI  Yasuhiro SUZUKI  Akira HIMENO  Noboru ISHIHARA  

IEICE TRANSACTIONS on Communications   Vol.E84-B    No.5    pp.1197-1204
Publication Date: 2001/05/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Systems and Technologies
wavelength conversion,  cross-phase modulation,  ITU-T grid,  hybrid integration,  polarization insensitive,  

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We fabricated a 1.55-µm polarization insensitive Michelson interferometric wavelength converter (MI-WC). The MI-WC consists of a two-channel spot-size converter integrated semiconductor optical amplifier (SS-SOA) on a planar lightwave circuit (PLC) platform. Clear eye opening and no power penalty in the back-to-back condition were obtained at 10 Gb/s modulation. We also confirmed the polarization insensitive operation on the input signal. Moreover, for an application of the MI-WC to DWDM networks, we demonstrated the selective wavelength conversion of 2.5 G/s optical packets from Fabry-Perot laser diode (FP-LD) light to four ITU-T grid wavelengths. We confirmed the good feasibility of this technique for use in DWDM networks. The wavelength conversion we describe here is indispensable for future all-optical networks, in which optical signal sources without wavelength control will be used at user-end terminals.