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1. US6144472 - Upgrading a power-splitting passive optical network using optical filtering

Office United States of America
Application Number 09009434
Application Date 20.01.1998
Publication Number 6144472
Publication Date 07.11.2000
Grant Number 6144472
Grant Date 07.11.2000
Publication Kind A
IPC
H04J 14/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
H04J 14/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
H04B 10/213
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
213using a T-type coupler
CPC
H04B 10/272
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
27Arrangements for networking
272Star-type networks ; or tree-type networks
Applicants Lucent Technologies Inc.
Inventors Knox Wayne H.
Agents Ratner & Prestia
Title
(EN) Upgrading a power-splitting passive optical network using optical filtering
Abstract
(EN)

The passive optical network system and method for providing a predetermined wavelength of data to remote users according to the present invention includes a multiple wavelength transmitter for transmitting a multiwavelength signal. The multiwavelength signal is provided by an access provider and has a plurality of signal components each of predetermined wavelength. A power-splitting passive optical network receives and power-splits the multiwavelength signal into a plurality of distributed multiwavelength signals each associated with a respective remote user. A filter selectively filters out, for each remote user, ones of the signal components of the associated distributed multiwavelength signal to provide the remote user with a selected one signal component of predetermined wavelength.

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