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Optical digital cross-connect system using photonic switch matrices and optical amplifiers

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5 Author(s)
Shiragaki, T. ; Opto-Electron. Res. Labs., NEC Corp., Kawasaki, Japan ; Fujiwara, M. ; Suzuki, S. ; Burke, C.
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This paper presents, for potential application to network failure restoration, an optical digital cross-connect system (DCS) which uses both a photonic switching network and an electric DCS. It is shown that a system constructed of LiNbO3 8×8 switch matrices and semiconductor traveling-wave optical amplifiers (TWA's) could be applied to metropolitan area networks. An experimental optical DCS system has been designed and fabricated which incorporates both LiNbO3 switch matrices and TWA's, and with it, line-failure restoration, a fundamental operation of optical DCS, has been successfully demonstrated

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Lightwave Technology, Journal of  (Volume:12 ,  Issue: 8 )