WO2002075380A3 - Optical channel monitor - Google Patents

Optical channel monitor Download PDF

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Publication number
WO2002075380A3
WO2002075380A3 PCT/GB2002/001278 GB0201278W WO02075380A3 WO 2002075380 A3 WO2002075380 A3 WO 2002075380A3 GB 0201278 W GB0201278 W GB 0201278W WO 02075380 A3 WO02075380 A3 WO 02075380A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical
input
light
input paths
optical channel
Prior art date
Application number
PCT/GB2002/001278
Other languages
French (fr)
Other versions
WO2002075380A2 (en
Inventor
Stephen William Roberts
Daniel John Kitcher
Original Assignee
Bookham Technology Plc
Stephen William Roberts
Daniel John Kitcher
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bookham Technology Plc, Stephen William Roberts, Daniel John Kitcher filed Critical Bookham Technology Plc
Priority to AU2002241123A priority Critical patent/AU2002241123A1/en
Publication of WO2002075380A2 publication Critical patent/WO2002075380A2/en
Publication of WO2002075380A3 publication Critical patent/WO2002075380A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
    • G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
    • G02B6/12019—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by the optical interconnection to or from the AWG devices, e.g. integration or coupling with lasers or photodiodes

Abstract

An integrated planar optical waveguide device (11) having a plurality of separate optical input paths (13,14,15), an optical dispersive device, for example an arrayed waveguide grating (12), having a plurality of inputs arranged to receive light respectively from said input paths, and a plurality of light-detecting devices (23) at the output end of the optical dispersive device (12) for receiving a respective portion of the dispersed output of the optical dispersive device, each of said input paths including a serially located variable light attenuator (18,19,20) operable selectively to permit or prevent transmission of light from the input path to the respective input of the device.
PCT/GB2002/001278 2001-03-19 2002-03-18 Optical channel monitor WO2002075380A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002241123A AU2002241123A1 (en) 2001-03-19 2002-03-18 Optical channel monitor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0106784A GB0106784D0 (en) 2001-03-19 2001-03-19 Optical channel monitor
GB0106784.2 2001-03-19

Publications (2)

Publication Number Publication Date
WO2002075380A2 WO2002075380A2 (en) 2002-09-26
WO2002075380A3 true WO2002075380A3 (en) 2003-05-22

Family

ID=9911024

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/001278 WO2002075380A2 (en) 2001-03-19 2002-03-18 Optical channel monitor

Country Status (3)

Country Link
AU (1) AU2002241123A1 (en)
GB (1) GB0106784D0 (en)
WO (1) WO2002075380A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0730520A (en) * 1993-07-12 1995-01-31 Nec Corp Optical fiber amplifier for wavelength multiplex transmission
US5881199A (en) * 1996-12-02 1999-03-09 Lucent Technologies Inc. Optical branching device integrated with tunable attenuators for system gain/loss equalization
US5978122A (en) * 1995-06-26 1999-11-02 Kokusai Denshin Denwa Kabushiki Kaisha Noise suppression method for wavelength division multiplexing transmission system
US6134034A (en) * 1996-03-18 2000-10-17 Fujitsu Limited Apparatus and method for controlling power levels of individual signal lights of a wavelength division multiplexed signal light
US6173105B1 (en) * 1998-11-20 2001-01-09 Lucent Technologies Optical attenuator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0730520A (en) * 1993-07-12 1995-01-31 Nec Corp Optical fiber amplifier for wavelength multiplex transmission
US5978122A (en) * 1995-06-26 1999-11-02 Kokusai Denshin Denwa Kabushiki Kaisha Noise suppression method for wavelength division multiplexing transmission system
US6134034A (en) * 1996-03-18 2000-10-17 Fujitsu Limited Apparatus and method for controlling power levels of individual signal lights of a wavelength division multiplexed signal light
US5881199A (en) * 1996-12-02 1999-03-09 Lucent Technologies Inc. Optical branching device integrated with tunable attenuators for system gain/loss equalization
US6173105B1 (en) * 1998-11-20 2001-01-09 Lucent Technologies Optical attenuator

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 04 31 May 1995 (1995-05-31) *
PEARSON M R T ET AL: "ARRAYED WAVEGUIDE RATING DEMULTIPLEXERS IN SILICON-ON-INSULATOR", PROCEEDINGS OF THE SPIE, SPIE, BELLINGHAM, VA, US, VOL. 3953, PAGE(S) 11-18, XP001040941 *

Also Published As

Publication number Publication date
AU2002241123A1 (en) 2002-10-03
GB0106784D0 (en) 2001-05-09
WO2002075380A2 (en) 2002-09-26

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