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1. CA2183912 - CHIRPED-PULSE MULTIPLE WAVELENGTH COMMUNICATIONS SYSTEM

Office Canada
Application Number 2183912
Application Date 22.08.1996
Publication Number 2183912
Publication Date 11.04.1997
Grant Number
Grant Date 04.05.1999
Publication Kind C
IPC
H04J 14/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
H04B 10/155
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
12Transmission through light guides, e.g. optical fibres
14Terminal stations
152Non-coherent direct-detection systems
155Transmitters
H04B 10/20
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
12Transmission through light guides, e.g. optical fibres
20Arrangements for networking, e.g. bus or star coupling
H04J 14/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
08Time-division multiplex systems
H04L 12/42
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
28characterised by path configuration, e.g. LAN or WAN
42Loop networks
CPC
H04B 10/504
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
501Structural aspects
503Laser transmitters
504using direct modulation
H04B 10/505
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
501Structural aspects
503Laser transmitters
505using external modulation
H04B 10/50577
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
501Structural aspects
503Laser transmitters
505using external modulation
5057using a feedback signal generated by analysing the optical output
50577to control the phase of the modulating signal
H04B 10/50597
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
501Structural aspects
503Laser transmitters
505using external modulation
5059using a feed-forward signal generated by analysing the optical or electrical input
50597to control the phase of the modulating signal
H04B 10/506
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
501Structural aspects
506Multiwavelength transmitters
H04B 10/572
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
572Wavelength control
Inventors KNOX, WAYNE HARVEY
NUSS, MARTIN C.
Priority Data 08548537 26.10.1995 US
Title
(EN) CHIRPED-PULSE MULTIPLE WAVELENGTH COMMUNICATIONS SYSTEM
(FR) SYSTEME DE COMMUNICATION MULTIFREQUENCE A IMPULSIONS COMPRIMEES
Abstract
(EN)
An apparatus and method provides optical multiple wavelength signals using a single optical broadband source to generate many independent optical wavelength channels. An optical transmitter includes a pulse chirping device which separates the frequency components of periodic optical pulses in the time domain forming separate wavelength channels which are separately modulated by a high-speed broadband optical modulator. A receiver includes a passive splitter to separate the individual wavelength channels. The chirped- pulse transmitter can then be conveniently adjusted to provide optimum overlap of wavelength channels with the modulating channel spectra.