Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-07-03
1998-08-11
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359127, H04J 1402
Patent
active
057935084
ABSTRACT:
A multi-wavelength optical telecommunication method includes: 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 including the optical transmission signals to a respective receiving station and separating the optical transmission signals, in which the step of separating the optical transmission signals includes: distributing the received multi-wavelength optical signal onto at least two output fibres; selectively reflecting a wavelength band of the multi-wavelength optical signal including 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.
REFERENCES:
patent: 5195161 (1993-03-01), Adar et al.
patent: 5233453 (1993-08-01), Sivarajan et al.
patent: 5475780 (1995-12-01), Mizrahi
patent: 5504609 (1996-04-01), Alexander et al.
patent: 5541766 (1996-07-01), Mizrahi et al.
Conference on Optical Fiber Communication (OFC '95) vol. 8, Feb. 26-Mar. 3, 1995 San Diego, CA.
Database InSPEC, IEE, London, GB--Byron et al--Inspec. No. 4847591.
Pascal Leslie
Pirelli Cavi S.p.A.
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