IT1084563B - Riduzione della dispersione modale e cromatica del materiale in una fibra ottica a molti modi. - Google Patents

Riduzione della dispersione modale e cromatica del materiale in una fibra ottica a molti modi.

Info

Publication number
IT1084563B
IT1084563B IT24591/77A IT2459177A IT1084563B IT 1084563 B IT1084563 B IT 1084563B IT 24591/77 A IT24591/77 A IT 24591/77A IT 2459177 A IT2459177 A IT 2459177A IT 1084563 B IT1084563 B IT 1084563B
Authority
IT
Italy
Prior art keywords
modal
reduction
optical fiber
many ways
chromatic dispersion
Prior art date
Application number
IT24591/77A
Other languages
English (en)
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Application granted granted Critical
Publication of IT1084563B publication Critical patent/IT1084563B/it

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
    • G02B6/268—Optical coupling means for modal dispersion control, e.g. concatenation of light guides having different modal dispersion properties
    • 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
    • G02B6/29311—Diffractive element operating in transmission
    • 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
    • G02B6/29371—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 principle based on material dispersion
    • G02B6/29374—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 principle based on material dispersion in an optical light guide
    • 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
    • G02B6/29392—Controlling dispersion
    • G02B6/29394—Compensating wavelength dispersion
    • 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
    • H04B10/2525—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion using dispersion-compensating fibres

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Optical Couplings Of Light Guides (AREA)
IT24591/77A 1976-08-03 1977-06-10 Riduzione della dispersione modale e cromatica del materiale in una fibra ottica a molti modi. IT1084563B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA258,322A CA1042247A (en) 1976-08-03 1976-08-03 Reduction of modal and chromatic material dispersion in a multimode optical fiber

Publications (1)

Publication Number Publication Date
IT1084563B true IT1084563B (it) 1985-05-25

Family

ID=4106563

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24591/77A IT1084563B (it) 1976-08-03 1977-06-10 Riduzione della dispersione modale e cromatica del materiale in una fibra ottica a molti modi.

Country Status (9)

Country Link
US (1) US4067642A (it)
JP (1) JPS5322446A (it)
CA (1) CA1042247A (it)
DE (1) DE2731645A1 (it)
ES (1) ES461168A1 (it)
FR (1) FR2360894A1 (it)
IT (1) IT1084563B (it)
NL (1) NL7706341A (it)
SE (1) SE7708821L (it)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198117A (en) * 1976-12-28 1980-04-15 Nippon Electric Co., Ltd. Optical wavelength-division multiplexing and demultiplexing device
US4111524A (en) * 1977-04-14 1978-09-05 Bell Telephone Laboratories, Incorporated Wavelength division multiplexer
US4153330A (en) * 1977-12-01 1979-05-08 Bell Telephone Laboratories, Incorporated Single-mode wavelength division optical multiplexer
NL7714270A (nl) * 1977-12-22 1979-06-26 Nederlanden Staat Inrichting voor het koppelen van ten minste drie lichtgeleiders.
GB2101763B (en) * 1981-07-16 1985-01-30 Standard Telephones Cables Ltd Delay equalisation for single mode fibres
US4770492A (en) * 1986-10-28 1988-09-13 Spectran Corporation Pressure or strain sensitive optical fiber
US4911516A (en) * 1989-02-27 1990-03-27 General Electric Company Optical device with mode selecting grating
US5185827A (en) * 1991-09-26 1993-02-09 At&T Bell Laboratories Apparatus for compensating chromatic dispersion in optical fibers
US5261016A (en) * 1991-09-26 1993-11-09 At&T Bell Laboratories Chromatic dispersion compensated optical fiber communication system
FR2685835A1 (fr) * 1991-12-31 1993-07-02 France Telecom Systeme de transmission tres longue distance sur fibre optique a compensation des distorsions a la reception.
FR2685834B1 (fr) * 1991-12-31 1995-03-31 France Telecom Systeme de transmission numerique longue distance sur fibre optique a compensation a l'emission des distorsions.
US5416862A (en) * 1993-04-07 1995-05-16 At&T Corp. Lightwave transmission system using selected optical modes
US5629998A (en) * 1996-01-29 1997-05-13 Corning Incorporated Method and apparatus for writing photosensitive grating using Lloyd's mirror
GB9605011D0 (en) * 1996-03-08 1996-05-08 Hewlett Packard Co Multimode communications systems
WO2006033853A2 (en) * 2004-09-07 2006-03-30 The Regents Of The University Of California Chromomodal dispersion apparatus and methods
EP2009416A1 (en) * 2007-06-29 2008-12-31 Interuniversitair Microelektronica Centrum Vzw Optical probe
FR2938389B1 (fr) * 2008-11-07 2011-04-15 Draka Comteq France Systeme optique multimode
US20100154478A1 (en) * 2008-12-01 2010-06-24 Panduit Corp. Multimode fiber having improved index profile
US8351027B2 (en) * 2009-06-15 2013-01-08 Panduit Corp. Method and metric for selecting and designing multimode fiber for improved performance
US8477298B2 (en) * 2009-09-30 2013-07-02 Corning Incorporated Angle-cleaved optical fibers and methods of making and using same
US20110075976A1 (en) * 2009-09-30 2011-03-31 James Scott Sutherland Substrates and grippers for optical fiber alignment with optical element(s) and related methods
US8295671B2 (en) * 2009-10-15 2012-10-23 Corning Incorporated Coated optical fibers and related apparatuses, links, and methods for providing optical attenuation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909110A (en) * 1974-11-11 1975-09-30 Bell Telephone Labor Inc Reduction of dispersion in a multimode fiber waveguide with core index fluctuations
US4006962A (en) * 1975-05-27 1977-02-08 Corning Glass Works Communication system having low dispersion glass optical waveguide

Also Published As

Publication number Publication date
SE7708821L (sv) 1978-02-04
JPS5322446A (en) 1978-03-01
US4067642A (en) 1978-01-10
JPS615122B2 (it) 1986-02-15
FR2360894A1 (fr) 1978-03-03
ES461168A1 (es) 1978-06-16
DE2731645A1 (de) 1978-02-09
NL7706341A (nl) 1978-02-07
CA1042247A (en) 1978-11-14

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