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1. WO1985000484 - WAVELENGTH DIVISION MULTIPLEXING OPTICAL COMMUNICATIONS SYSTEMS

Publication Number WO/1985/000484
Publication Date 31.01.1985
International Application No. PCT/US1984/000952
International Filing Date 25.06.1984
IPC
H04B 10/158 2006.01
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
158Receivers
H04J 14/02 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
CPC
H04B 10/675
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
60Receivers
66Non-coherent receivers, e.g. using direct detection
67Optical arrangements in the receiver
671for controlling the input optical signal
675for controlling the optical bandwidth of the input signal, e.g. spectral filtering
H04J 14/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
H04J 14/0227
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0227Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
H04J 14/0228
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0227Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
0228Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths
H04J 14/0241
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0227Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
0241Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
H04J 14/0283
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0278WDM optical network architectures
0283WDM ring architectures
Applicants
  • AMERICAN TELEPHONE & TELEGRAPH COMPANY [US]/[US]
Inventors
  • WILLIAMS, Gareth, Ferd
Agents
  • HIRSCH, A., E., Jr. @
Priority Data
511,87308.07.1983US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) WAVELENGTH DIVISION MULTIPLEXING OPTICAL COMMUNICATIONS SYSTEMS
(FR) SYSTEMES DE COMMUNICATIONS OPTIQUES A MULTIPLEXAGE PAR DIVISION DE LONGUEURS D'ONDES
Abstract
(EN)
Optical device (T1) comprising a waveguide resonator (10), a photodetector (500) and the resonator is adapted to be evanescently coupled to an optical waveguide (F) and optically coupled to the photodetector (500) wherein the resonator is tunable. The device further comprises an intracavity element (50) optically coupled to the resonator, a control circuit element (100 arranged to tune the resonator and further comprising either a receiver (300) or an optical gain element (200). The optical gain device may be located on a loop or interconnecting two loops.
(FR)
Dispositif optique (T1) comprenant un résonateur de guide d'ondes (10), un photodétecteur (500), le résonateur étant conçu pour être couplé de manière évanescente à un guide d'ondes optiques (F) et pour être couplé optiquement au photodétecteur (500), ce résonateur étant accordable. Le dispositif comprend en outre un élément d'intracavité (50) couplé optiquement au résonateur, un élément de circuit de commande (100) permettant d'accorder le résonateur et comprenant en outre soit un récepteur (300), soit un élément optique de gain (200). Le dispositif optique de gain peut être disposé dans une boucle ou peut relier deux boucles.
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