Wavelength-division multiplexing telecommunication system...

Details Wavelength-division multiplexing telecommunication system... Wavelength-division multiplexing telecommunication system...

H - Electricity

04

J

H04J 14/02 (2006.01) H04B 10/12 (2006.01) H04B 10/158 (2006.01)

Patent

CA 2181218

A multi-wavelength optical telecommunication method comprising: generating at least two optical transmission signals of wavelengths different from each other,multiplexing the optical signals in a single transmission fibre, forming a multi- wavelength optical signal, transmitting, through the transmission fibre, the multi- wavelength optical signal comprising the optical transmission signals to a respective receiving station and separating the optical transmission signals, inwhich said step of separating said optical transmission signals comprises: distributing the received multi-wavelength optical signal onto at least two output fibres; selectively reflecting a wavelength band of the multi-wavelength opticalsignal comprising at least one of the optical transmission signals, so that the reflected band propagates over the output fibre in an opposite direction to the multi-wavelength optical signal; separating the reflected band from the output fibre and feeding it, through a receiving fibre, to a respective receiver.

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