WO2003025630A3 - Free-space optical systems for wavelength switching and spectral monitoring applications - Google Patents

Free-space optical systems for wavelength switching and spectral monitoring applications Download PDF

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Publication number
WO2003025630A3
WO2003025630A3 PCT/US2002/030013 US0230013W WO03025630A3 WO 2003025630 A3 WO2003025630 A3 WO 2003025630A3 US 0230013 W US0230013 W US 0230013W WO 03025630 A3 WO03025630 A3 WO 03025630A3
Authority
WO
WIPO (PCT)
Prior art keywords
spectral
wavelength
array
optical systems
free
Prior art date
Application number
PCT/US2002/030013
Other languages
French (fr)
Other versions
WO2003025630A2 (en
Inventor
Jeffrey P Wilde
Pavel Polynkin
Michael J Timmons
Mark H Garrett
Original Assignee
Capella Photonics Inc
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
Priority claimed from US09/961,565 external-priority patent/US6507685B1/en
Priority claimed from US10/022,303 external-priority patent/US6804428B1/en
Application filed by Capella Photonics Inc filed Critical Capella Photonics Inc
Priority to AU2002330075A priority Critical patent/AU2002330075A1/en
Priority to CA2460975A priority patent/CA2460975C/en
Priority to JP2003529205A priority patent/JP4223951B2/en
Priority to CN02823085.XA priority patent/CN1610850B/en
Priority to KR10-2004-7004093A priority patent/KR20040047844A/en
Priority to EP02766333A priority patent/EP1428052A4/en
Publication of WO2003025630A2 publication Critical patent/WO2003025630A2/en
Publication of WO2003025630A3 publication Critical patent/WO2003025630A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/447—Polarisation spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/2803—Investigating the spectrum using photoelectric array detector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J2003/2866—Markers; Calibrating of scan
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0224—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using polarising or depolarising elements

Abstract

This invention provides a novel method and apparatus which use a wavelength-dispersing means such as a diffraction grating (220) to spatially separate a multi-wavelength optical signal along with a reference signal by wavelength into multiple spectral channels and a reference spectral component in a spectral array with a predetermined relative alignment. By aligning the reference spectral component at a predetermined location, the spectral channels simultaneously impinge onto designated locations, e.g., on an array of beam-receiving elements positioned in accordance with the spectral array. The reference spectral component may be further maintained at the predetermined location by way of servo-control (260), thereby ensuring that the spectral channels stay aligned at the designated locations. The present invention can be used to construct a new line of servo-based optical systems, including spectral power monitors and optical multiplexers/demultiplexers, for WDM optical networking applications.
PCT/US2002/030013 2001-09-20 2002-09-19 Free-space optical systems for wavelength switching and spectral monitoring applications WO2003025630A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2002330075A AU2002330075A1 (en) 2001-09-20 2002-09-19 Free-space optical systems for wavelength switching and spectral monitoring applications
CA2460975A CA2460975C (en) 2001-09-20 2002-09-19 Free-space optical systems for wavelength switching and spectral monitoring applications
JP2003529205A JP4223951B2 (en) 2001-09-20 2002-09-19 Free-space optics for wavelength switching and spectral monitoring applications
CN02823085.XA CN1610850B (en) 2001-09-20 2002-09-19 Free-space optical systems for wavelength switching and spectral monitoring applications
KR10-2004-7004093A KR20040047844A (en) 2001-09-20 2002-09-19 Free-space optical systems for wavelength switching and spectral monitoring applications
EP02766333A EP1428052A4 (en) 2001-09-20 2002-09-19 Free-space optical systems for wavelength switching and spectral monitoring applications

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US09/961,565 2001-09-20
US09/961,565 US6507685B1 (en) 2001-09-20 2001-09-20 Method and apparatus for servo-based spectral array alignment in optical systems
US09/992,778 US6504976B1 (en) 2001-09-20 2001-11-14 Spectral power monitors with active alignment compensation
US09/992,778 2001-11-14
US10/022,303 2001-12-14
US10/022,303 US6804428B1 (en) 2001-11-14 2001-12-14 Optical spectral power monitors employing polarization deversity scheme

Publications (2)

Publication Number Publication Date
WO2003025630A2 WO2003025630A2 (en) 2003-03-27
WO2003025630A3 true WO2003025630A3 (en) 2003-07-31

Family

ID=27361848

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/030013 WO2003025630A2 (en) 2001-09-20 2002-09-19 Free-space optical systems for wavelength switching and spectral monitoring applications

Country Status (5)

Country Link
EP (1) EP1428052A4 (en)
JP (1) JP4223951B2 (en)
CN (1) CN1610850B (en)
CA (1) CA2460975C (en)
WO (1) WO2003025630A2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7092599B2 (en) * 2003-11-12 2006-08-15 Engana Pty Ltd Wavelength manipulation system and method
US7522786B2 (en) * 2005-12-22 2009-04-21 Palo Alto Research Center Incorporated Transmitting light with photon energy information
DK200500840A (en) * 2005-06-09 2006-12-10 Banke Stefan Ovesen Raman mini spectrometer adapted to SSRS method
JP4867306B2 (en) * 2005-11-18 2012-02-01 横河電機株式会社 WDM signal monitor
US7852475B2 (en) * 2007-08-13 2010-12-14 Jds Uniphase Corporation Scanning spectrometer with multiple photodetectors
JP4755210B2 (en) * 2008-01-28 2011-08-24 日本電信電話株式会社 Optical signal processing device and method for adjusting optical signal processing device
EP2248289A1 (en) 2008-02-29 2010-11-10 Telefonaktiebolaget L M Ericsson (publ) Channel power estimation means
US8290375B2 (en) * 2008-05-27 2012-10-16 Agilent Technologies, Inc. Modulation based optical spectrum analyzer
US20100129076A1 (en) * 2008-11-24 2010-05-27 Giovanni Barbarossa Method and apparatus for spectral band management
JP2010128473A (en) * 2008-12-01 2010-06-10 Olympus Corp Dispersion element and optical equipment with dispersion element
JP5965099B2 (en) * 2010-11-05 2016-08-03 住友電気工業株式会社 Optical apparatus and adjustment method thereof
CN101982948A (en) * 2010-11-08 2011-03-02 北京邮电大学 FSO (free space optic) dynamic networking method based on back scattering estimation
JP5397919B2 (en) * 2011-08-01 2014-01-22 株式会社ニデック Ophthalmic equipment
CN102970073A (en) * 2011-09-01 2013-03-13 昂纳信息技术（深圳）有限公司 Device and system for optical performance monitoring
US10254556B2 (en) 2014-04-28 2019-04-09 Nokia Technologies Oy Polarization rotator-combiner for optical communications
BR112021001036A2 (en) * 2018-07-19 2021-07-27 Ahmad Abderhamane mobile terminal and cellular network with photonic antennas and pseudo satellites to increase transfer speed and reduce the risk of brain diseases and electromagnetic pollution rf

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6239891B1 (en) * 1998-03-11 2001-05-29 Nippon Sheet Glass Ltd., Co Optical demultiplexer and method of assembling same
US20020131698A1 (en) * 2001-03-19 2002-09-19 Wilde Jeffrey P. Reconfigurable optical add and drop modules with servo control and dynamic spectral power management capabilities

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170815A (en) 1983-03-18 1984-09-27 Hitachi Ltd Diffraction grating type optical demultiplexer
US4692883A (en) * 1985-02-21 1987-09-08 The Perkin-Elmer Corporation Automatic digital wavelength calibration system for a spectrophotometer
DE19545178B4 (en) * 1995-12-04 2008-04-10 Berthold Gmbh & Co. Kg spectral detector
US5771094A (en) 1997-01-29 1998-06-23 Kla-Tencor Corporation Film measurement system with improved calibration

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6239891B1 (en) * 1998-03-11 2001-05-29 Nippon Sheet Glass Ltd., Co Optical demultiplexer and method of assembling same
US20020131698A1 (en) * 2001-03-19 2002-09-19 Wilde Jeffrey P. Reconfigurable optical add and drop modules with servo control and dynamic spectral power management capabilities

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1428052A4 *

Also Published As

Publication number Publication date
WO2003025630A2 (en) 2003-03-27
CA2460975C (en) 2010-08-10
EP1428052A2 (en) 2004-06-16
CN1610850A (en) 2005-04-27
JP2005527784A (en) 2005-09-15
CA2460975A1 (en) 2003-03-27
JP4223951B2 (en) 2009-02-12
CN1610850B (en) 2010-04-28
EP1428052A4 (en) 2004-12-08

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