WO2001011419A3 - Dynamic spectral shaping in optical fibre communication - Google Patents

Dynamic spectral shaping in optical fibre communication Download PDF

Info

Publication number
WO2001011419A3
WO2001011419A3 PCT/US2000/021662 US0021662W WO0111419A3 WO 2001011419 A3 WO2001011419 A3 WO 2001011419A3 US 0021662 W US0021662 W US 0021662W WO 0111419 A3 WO0111419 A3 WO 0111419A3
Authority
WO
WIPO (PCT)
Prior art keywords
grating
spectral shaping
optical fibre
dynamic spectral
fibre communication
Prior art date
Application number
PCT/US2000/021662
Other languages
French (fr)
Other versions
WO2001011419A9 (en
WO2001011419A2 (en
Inventor
Asif A Godil
David M Bloom
Original Assignee
Lightconnect 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 US09/372,649 external-priority patent/US6169624B1/en
Priority claimed from US09/548,788 external-priority patent/US6501600B1/en
Priority claimed from US09/549,781 external-priority patent/US6826330B1/en
Application filed by Lightconnect Inc filed Critical Lightconnect Inc
Priority to AU16537/01A priority Critical patent/AU1653701A/en
Priority to JP2001516015A priority patent/JP2003506988A/en
Priority to EP00979122A priority patent/EP1203463A2/en
Publication of WO2001011419A2 publication Critical patent/WO2001011419A2/en
Publication of WO2001011419A3 publication Critical patent/WO2001011419A3/en
Publication of WO2001011419A9 publication Critical patent/WO2001011419A9/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
    • H01S3/10023—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0808—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more diffracting elements
    • 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
    • G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
    • G02B6/266—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting the optical element being an attenuator
    • 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
    • G02B6/29304—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 diffraction, e.g. grating
    • G02B6/29305—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 diffraction, e.g. grating as bulk element, i.e. free space arrangement external to a light guide
    • G02B6/2931—Diffractive element operating in reflection
    • 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
    • G02B6/29304—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 diffraction, e.g. grating
    • G02B6/29305—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 diffraction, e.g. grating as bulk element, i.e. free space arrangement external to a light guide
    • G02B6/29313—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 diffraction, e.g. grating as bulk element, i.e. free space arrangement external to a light guide characterised by means for controlling the position or direction of light incident to or leaving the diffractive element, e.g. for varying the wavelength response
    • 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
    • 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
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
    • G02B6/2793—Controlling polarisation dependent loss, e.g. polarisation insensitivity, reducing the change in polarisation degree of the output light even if the input polarisation state fluctuates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S2301/00—Functional characteristics
    • H01S2301/04—Gain spectral shaping, flattening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping

Abstract

The present invention is directed towards dynamic spectral shaping. Using a grating (150), the spectral band is spread across a diffractive MEMS (200) or other suitable device operable as a controllable grating providing a controllable reflectivity as a function of wavelength. The device may be the deformable grating modulator invented by Bloom et. al. (US patent no. 5,311,360) or other suitable device. The invention also includes the coupling in and out of the fiber (105) and may use polarization optics (130, 140) to ensure the grating is used in only one polarization where the diffraction efficiency is higher.
PCT/US2000/021662 1999-08-11 2000-08-08 Dynamic spectral shaping in optical fibre communication WO2001011419A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU16537/01A AU1653701A (en) 1999-08-11 2000-08-08 Dynamic spectral shaping for fiber-optic application
JP2001516015A JP2003506988A (en) 1999-08-11 2000-08-08 Dynamic spectral shaping for application to optical fibers
EP00979122A EP1203463A2 (en) 1999-08-11 2000-08-08 Dynamic spectral shaping in optical fibre communication

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US37271299A 1999-08-11 1999-08-11
US09/372,712 1999-08-11
US09/372,649 1999-08-11
US09/372,649 US6169624B1 (en) 1999-08-11 1999-08-11 Achromatic optical modulators
US17168599P 1999-12-21 1999-12-21
US60/171,685 1999-12-21
US09/548,788 2000-04-13
US09/548,788 US6501600B1 (en) 1999-08-11 2000-04-13 Polarization independent grating modulator
US09/549,781 2000-04-14
US09/549,781 US6826330B1 (en) 1999-08-11 2000-04-14 Dynamic spectral shaping for fiber-optic application

Publications (3)

Publication Number Publication Date
WO2001011419A2 WO2001011419A2 (en) 2001-02-15
WO2001011419A3 true WO2001011419A3 (en) 2001-09-13
WO2001011419A9 WO2001011419A9 (en) 2002-07-18

Family

ID=27538845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/021662 WO2001011419A2 (en) 1999-08-11 2000-08-08 Dynamic spectral shaping in optical fibre communication

Country Status (4)

Country Link
EP (1) EP1203463A2 (en)
JP (1) JP2003506988A (en)
AU (1) AU1653701A (en)
WO (1) WO2001011419A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7791027B2 (en) 2006-01-31 2010-09-07 Ahura Scientific Inc. Apparatus and method providing a hand-held spectrometer

Families Citing this family (16)

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Publication number Priority date Publication date Assignee Title
US6724125B2 (en) 1999-03-30 2004-04-20 Massachusetts Institute Of Technology Methods and apparatus for diffractive optical processing using an actuatable structure
WO2002075410A1 (en) * 2001-03-19 2002-09-26 Capella Photonics, Inc. Reconfigurable optical add-drop multiplexers
US7126740B2 (en) 2001-04-03 2006-10-24 Cidra Corporation Multifunctional optical device having a spatial light modulator with an array of micromirrors
EP1386192A2 (en) 2001-04-03 2004-02-04 CiDra Corporation Dynamic optical filter having a spatial light modulator
WO2002082166A2 (en) * 2001-04-03 2002-10-17 Cidra Corporation Variable optical source
CN1511271A (en) * 2001-04-13 2004-07-07 康宁股份有限公司 High contrast reflective for telecommunications application
DE60126842T2 (en) 2001-08-16 2007-08-30 Telefonaktiebolaget Lm Ericsson (Publ) OPTICAL AMPLIFIER
US7046410B2 (en) 2001-10-11 2006-05-16 Polychromix, Inc. Actuatable diffractive optical processor
US20030133186A1 (en) * 2002-01-15 2003-07-17 Yakov Reznichenko Optical switching system and apparatus with integral covering lens
AU2003207732A1 (en) * 2002-01-28 2003-09-02 Cidra Corporation Multifunctional optical device having a spatial light modulator with an array of micromirrors
GB0205794D0 (en) 2002-03-12 2002-04-24 Montelius Lars G Mems devices on a nanometer scale
US6985308B1 (en) 2002-05-28 2006-01-10 Polychromix Corporation Telecommunications optical processor
AU2002950003A0 (en) * 2002-07-05 2002-09-12 Edith Cowan University A multi-function opto-vlsi processor for intelligent optial networks
US6842556B2 (en) 2002-09-10 2005-01-11 Analog Devices, Inc. Two input, two output optical switch using two movable mirrors
NO20033940D0 (en) * 2003-09-05 2003-09-05 Photonyx As Method and apparatus for reducing polarization dependent effects in a controllable optical component
JP5228205B2 (en) * 2007-06-15 2013-07-03 独立行政法人情報通信研究機構 Optical waveform shaping device

Citations (8)

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EP0555778A2 (en) * 1992-02-14 1993-08-18 Matsushita Electric Industrial Co., Ltd. Optical filter and optical amplifier employing said optical filters
US5311360A (en) * 1992-04-28 1994-05-10 The Board Of Trustees Of The Leland Stanford, Junior University Method and apparatus for modulating a light beam
EP0654917A2 (en) * 1993-11-12 1995-05-24 AT&T Corp. High-density optical wavelength division multiplexing
US5745271A (en) * 1996-07-31 1998-04-28 Lucent Technologies, Inc. Attenuation device for wavelength multiplexed optical fiber communications
US5793912A (en) * 1994-06-09 1998-08-11 Apa Optics, Inc. Tunable receiver for a wavelength division multiplexing optical apparatus and method
US5805759A (en) * 1996-03-27 1998-09-08 Fujitsu Limited Optical equalizer having variable transmittance versus wavelength characteristics for attenuating light
WO1999038348A1 (en) * 1998-01-27 1999-07-29 Tellium, Inc. Wavelength-selective optical add/drop using tilting micro-mirrors
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US5311360A (en) * 1992-04-28 1994-05-10 The Board Of Trustees Of The Leland Stanford, Junior University Method and apparatus for modulating a light beam
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7791027B2 (en) 2006-01-31 2010-09-07 Ahura Scientific Inc. Apparatus and method providing a hand-held spectrometer

Also Published As

Publication number Publication date
EP1203463A2 (en) 2002-05-08
AU1653701A (en) 2001-03-05
WO2001011419A9 (en) 2002-07-18
WO2001011419A2 (en) 2001-02-15
JP2003506988A (en) 2003-02-18

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