Patent ID: 6804468
Filing Date: 2004-10-12
Classification: H04B,H04J

Abstract:
A WDM optical transmission system performing communication in accordance with transmission and receipt of an optical wavelength division multiplexed (WDM) signal obtained by multiplexing optical signals of plural wavelengths having same or different transfer rates and coding formats, comprising:a demultiplexer for demultiplexing a WDM signal to output the optical signals of plural wavelengths, an optical to electrical converter for converting at least one of the optical signals of plural wavelengths into an electrical signal, a retiming unit for correcting pulse width distortion of the electrical signal, and an optical signal supplying unit for converting the electrical signal of which distortion of pulse width has been corrected into an optical signal and then supplying the converted optical to a predetermined optical transmission apparatus, wherein said optical signal supplying unit is included together with an optical signal receiving unit in an optical transceiver, said optical signal receiving unit receiving another optical signal from said predetermined optical transmission apparatus to output another electrical signal, said retiming unit being supplied with a transfer rate of said another electrical signal detected by a transfer rate detector.