Patent Number: 6,295,149

Title: System and method of telecommunication with wavelength division multiplexing comprising a demultiplexer

Abstract: Method of optical telecommunication comprising the phases of generating at least two optical transmission signals, at mutually different preset wavelengths separated by a preset distance; multiplexing the said optical signals by wavelength division in a single transmission fiber, forming a multi-wavelength optical signal comprising the said optical transmission signals; transmitting the said multi-wavelength optical signal through the said optical fiber to a receiving station comprising at least two receivers; selecting at least one of the said optical transmission signals from the said multi-wavelength optical signal; feeding the said filtered optical signal to the respective receiver; characterized in that before the said phase of selecting at least one of the said optical transmission signals it further comprises the phases of eliminating from the said multi-wavelength optical signal, at least one signal with wavelength different from the wavelength of the said at least one selected optical transmission signal.

Inventors: Meli; Fausto (Piacenza, IT)

Assignee: Pirelli Cavi e Sistemi S.p.A.

International Classification: G02B 6/34 (20060101); H04J 14/02 (20060101); H04J 014/02 ()

Expiration Date: 09/25/2018