EP 1264425 A1 20021211 - METHOD AND SYSTEM FOR AMPLITUDE MODULATION OF AN OPTICAL SIGNAL
Title (en)
METHOD AND SYSTEM FOR AMPLITUDE MODULATION OF AN OPTICAL SIGNAL
Title (de)
VERFAHREN UND ANORDNUNG ZUR AMPLITUDENMODULATION EINES OPTISCHEN SIGNALS
Title (fr)
PROCEDE ET SYSTEME POUR LA MODULATION D'AMPLITUDE D'UN SIGNAL OPTIQUE
Publication
Application
Priority
- DE 0100580 W 20010215
- DE 10013197 A 20000317
Abstract (en)
[origin: DE10013197A1] The amplitude modulation method uses a modulator (MZM) for modulation of an optical signal (os) with a binary data signal (ds), to provide a transmission signal (ts), the optical signal divided into 2 partial optical signals (os1,os2), one of which is supplied to the modulator, while the other is converted into a counter-phase optical signal (gps), combined with the modulator output signal to provide a carrier reduced optical transmission signal. The optical signal is divided into 2 partial optical signals by an adjustable optical switch (OCU) controlled via a regulating signal (rs1), or via an optical switch with a fixed ratio, a optical attenuation device controlled by the regulating signal inserted in the path of the partial optical signal used for providing the counter-phase optical signal.
IPC 1-7
IPC 8 full level
H04B 10/50 (2013.01); H04B 10/516 (2013.01); H04B 10/54 (2013.01)
CPC (source: EP US)
H04B 10/505 (2013.01 - EP US); H04B 10/5053 (2013.01 - EP US); H04B 10/50572 (2013.01 - EP US); H04B 10/50577 (2013.01 - EP US); H04B 10/5165 (2013.01 - EP US); H04B 10/541 (2013.01 - EP US)
Citation (search report)
See references of WO 0169819A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 10013197 A1 20010927; EP 1264425 A1 20021211; US 2003030874 A1 20030213; WO 0169819 A1 20010920
DOCDB simple family (application)
DE 10013197 A 20000317; DE 0100580 W 20010215; EP 01915009 A 20010215; US 23903102 A 20020917