An optical PON network using passive DPSK demodulation

An optical PON network comprises a central office which generates N DPSK modulated optical signals, where N is an integer greater than 1, an optical coupling which connects the N signals to at least one optical fiber, a passive distribution node located remotely from the central office which has at...

Full description

Saved in:
Bibliographic Details
Main Authors PROIETTII ROBERTO, CIARAMELLA ERNESTO, CONTESTABILE GIAMPIERO, PRESI MARCO, CAVALIERE FABIO, CALABRETTA NICOLA, GHIGGINO PIERPAOLO
Format Patent
LanguageChinese
English
Published 23.07.2014
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
Online AccessGet full text

Cover

More Information
Summary:An optical PON network comprises a central office which generates N DPSK modulated optical signals, where N is an integer greater than 1, an optical coupling which connects the N signals to at least one optical fiber, a passive distribution node located remotely from the central office which has at least one input port that is coupled to the fiber and a plurality of output ports, the node being arranged to transmit a first wavelength of the N signals to at least one of its output ports, and at least one optical network unit connected through a respective optical fiber to the first output port of the passive distribution node. The passive distribution node comprises an arrayed waveguide grating which provides a passive optical connection between its input port and the first output port and which for that connection functions as a bandpass filter having a profile and bandwidth selected such that the DPSK optical signal passed to the input node is converted to an intensity modulated signal at the output port.
Bibliography:Application Number: CN200880018200