WO2001067658A3 - Multi-filter cavity optical channel monitoring system - Google Patents

Multi-filter cavity optical channel monitoring system Download PDF

Info

Publication number
WO2001067658A3
WO2001067658A3 PCT/US2001/006852 US0106852W WO0167658A3 WO 2001067658 A3 WO2001067658 A3 WO 2001067658A3 US 0106852 W US0106852 W US 0106852W WO 0167658 A3 WO0167658 A3 WO 0167658A3
Authority
WO
WIPO (PCT)
Prior art keywords
monitoring system
filter
channel monitoring
optical channel
filter cavity
Prior art date
Application number
PCT/US2001/006852
Other languages
French (fr)
Other versions
WO2001067658A2 (en
Inventor
Dale C Flanders
Jeffrey A Korn
Original Assignee
Axsun Tech Inc
Dale C Flanders
Jeffrey A Korn
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 Axsun Tech Inc, Dale C Flanders, Jeffrey A Korn filed Critical Axsun Tech Inc
Priority to AU6967501A priority Critical patent/AU6967501A/en
Publication of WO2001067658A2 publication Critical patent/WO2001067658A2/en
Publication of WO2001067658A3 publication Critical patent/WO2001067658A3/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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29358—Multiple beam interferometer external to a light guide, e.g. Fabry-Pérot, etalon, VIPA plate, OTDL plate, continuous interferometer, parallel plate resonator
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29347—Loop interferometers, e.g. Sagnac, loop mirror
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/29395—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device configurable, e.g. tunable or reconfigurable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07955—Monitoring or measuring power
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
    • G02B6/4226—Positioning means for moving the elements into alignment, e.g. alignment screws, deformation of the mount
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures

Abstract

A channel monitoring system has improved the spectral filtering accuracy by using a tunable filter system that transmits the optical signal through serial filter cavities. This has the effect of dramatically narrowing the filter's transfer function. Moreover, it improves side mode rejection. In the preferred embodiment, the filter is implemented in a double-pass configuration.
PCT/US2001/006852 2000-03-03 2001-03-02 Multi-filter cavity optical channel monitoring system WO2001067658A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU6967501A AU6967501A (en) 2000-03-03 2001-03-02 Multi-filter cavity optical channel monitoring system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US18680000P 2000-03-03 2000-03-03
US60/186,800 2000-03-03
US64841100A 2000-08-25 2000-08-25
US09/648,411 2000-08-25

Publications (2)

Publication Number Publication Date
WO2001067658A2 WO2001067658A2 (en) 2001-09-13
WO2001067658A3 true WO2001067658A3 (en) 2002-01-03

Family

ID=26882432

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/006852 WO2001067658A2 (en) 2000-03-03 2001-03-02 Multi-filter cavity optical channel monitoring system

Country Status (2)

Country Link
AU (1) AU6967501A (en)
WO (1) WO2001067658A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002364152A1 (en) * 2001-12-10 2003-06-23 E.I. Du Pont De Nemours And Company Wavelength division multiplexing optical performance monitors
WO2003055107A2 (en) * 2001-12-13 2003-07-03 Lambda Crossing Ltd. Optical channel monitor device and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5027435A (en) * 1987-07-15 1991-06-25 At&T Bell Laboratories Optical communication systems using Fabry-Perot cavities
US5303314A (en) * 1993-03-15 1994-04-12 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for polarization-maintaining fiber optical amplification with orthogonal polarization output
EP0773640A2 (en) * 1995-11-07 1997-05-14 AT&T Corp. Optical communication system using tandem Fabry-Perot etalon for wavelength selection
US5666225A (en) * 1996-02-26 1997-09-09 Jds Fitel Inc. Multi-pass etalon filter
US5838437A (en) * 1997-04-09 1998-11-17 Micron Optics, Inc. Reference system for optical devices including optical scanners and spectrum analyzers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5027435A (en) * 1987-07-15 1991-06-25 At&T Bell Laboratories Optical communication systems using Fabry-Perot cavities
US5303314A (en) * 1993-03-15 1994-04-12 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for polarization-maintaining fiber optical amplification with orthogonal polarization output
EP0773640A2 (en) * 1995-11-07 1997-05-14 AT&T Corp. Optical communication system using tandem Fabry-Perot etalon for wavelength selection
US5666225A (en) * 1996-02-26 1997-09-09 Jds Fitel Inc. Multi-pass etalon filter
US5838437A (en) * 1997-04-09 1998-11-17 Micron Optics, Inc. Reference system for optical devices including optical scanners and spectrum analyzers

Also Published As

Publication number Publication date
AU6967501A (en) 2001-09-17
WO2001067658A2 (en) 2001-09-13

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