WO2002071672A3 - (de)multiplexer with interleaver for producing a flat-top filter function and enhanced channel separation - Google Patents

(de)multiplexer with interleaver for producing a flat-top filter function and enhanced channel separation Download PDF

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Publication number
WO2002071672A3
WO2002071672A3 PCT/US2002/006755 US0206755W WO02071672A3 WO 2002071672 A3 WO2002071672 A3 WO 2002071672A3 US 0206755 W US0206755 W US 0206755W WO 02071672 A3 WO02071672 A3 WO 02071672A3
Authority
WO
WIPO (PCT)
Prior art keywords
input
interleaver
multiplexer
flat
signals
Prior art date
Application number
PCT/US2002/006755
Other languages
French (fr)
Other versions
WO2002071672A2 (en
Inventor
Andrew D Sappey
Pei Huang
Ruiu Pu
Original Assignee
Zolo Technologies Inc
Andrew D Sappey
Pei Huang
Ruiu Pu
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 Zolo Technologies Inc, Andrew D Sappey, Pei Huang, Ruiu Pu filed Critical Zolo Technologies Inc
Publication of WO2002071672A2 publication Critical patent/WO2002071672A2/en
Publication of WO2002071672A3 publication Critical patent/WO2002071672A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • 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
    • G02B6/29308—Diffractive element having focusing properties, e.g. curved gratings
    • 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
    • G02B6/29379—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
    • G02B6/2938—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 for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
    • G02B6/29386—Interleaving or deinterleaving, i.e. separating or mixing subsets of optical signals, e.g. combining even and odd channels into a single optical signal

Abstract

An apparatus and method are provided employing a single set of reduced-cost optics for (de)multiplexing optical signals whereby the resultant signals have a flat-top response with increased channel spacing. One aspect of the present invention uses an optical interleaver (310) to separate channels from an input multichannel (multiplexed) optical signal (302) with a select channel spacing into, for example, two input signals consisting of alternating channels at twice the select channel spacing. The separated signals are then directed to a multiple-input, such as dual-input, (parallel)(de)multiplexer device (320) which further spacially separates the channels for coupling with single channel transmission fibers (3221-n, 3241-n). The input fibers to the (de)multiplexer are preferably offset relative to each other to accommodate channel shift resulting from the interleaver.
PCT/US2002/006755 2001-03-01 2002-03-01 (de)multiplexer with interleaver for producing a flat-top filter function and enhanced channel separation WO2002071672A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27321701P 2001-03-01 2001-03-01
US60/273,217 2001-03-01

Publications (2)

Publication Number Publication Date
WO2002071672A2 WO2002071672A2 (en) 2002-09-12
WO2002071672A3 true WO2002071672A3 (en) 2002-11-14

Family

ID=23043006

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/006755 WO2002071672A2 (en) 2001-03-01 2002-03-01 (de)multiplexer with interleaver for producing a flat-top filter function and enhanced channel separation

Country Status (1)

Country Link
WO (1) WO2002071672A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10350282A1 (en) * 2003-10-28 2005-06-02 Marconi Communications Gmbh Optical filter chain
CN101615969B (en) * 2009-08-12 2013-01-02 烽火通信科技股份有限公司 De-multiplexing system of wavelength division multiplexing network
CN115980914A (en) * 2021-10-15 2023-04-18 苏州湃矽科技有限公司 On-chip integrated wavelength division multiplexer and chip

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800557A (en) * 1984-08-27 1989-01-24 Krone Gmbh Optical demultiplex transmission equipment
US6108471A (en) * 1998-11-17 2000-08-22 Bayspec, Inc. Compact double-pass wavelength multiplexer-demultiplexer having an increased number of channels
WO2000057589A1 (en) * 1999-03-22 2000-09-28 Chorum Technologies Lp Method and apparatus for wavelenght multiplexing/demultiplexing
EP1052868A2 (en) * 1999-05-13 2000-11-15 Lucent Technologies Inc. Free-space/arrayed-waveguide router
WO2001005082A1 (en) * 1999-07-13 2001-01-18 Jds Uniphase Corporation Method and devices for multiplexing and de-multiplexing multiple wavelengths

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800557A (en) * 1984-08-27 1989-01-24 Krone Gmbh Optical demultiplex transmission equipment
US6108471A (en) * 1998-11-17 2000-08-22 Bayspec, Inc. Compact double-pass wavelength multiplexer-demultiplexer having an increased number of channels
WO2000057589A1 (en) * 1999-03-22 2000-09-28 Chorum Technologies Lp Method and apparatus for wavelenght multiplexing/demultiplexing
EP1052868A2 (en) * 1999-05-13 2000-11-15 Lucent Technologies Inc. Free-space/arrayed-waveguide router
WO2001005082A1 (en) * 1999-07-13 2001-01-18 Jds Uniphase Corporation Method and devices for multiplexing and de-multiplexing multiple wavelengths

Also Published As

Publication number Publication date
WO2002071672A2 (en) 2002-09-12

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