JPS57129036A - Optical fiber communication system - Google Patents

Optical fiber communication system

Info

Publication number
JPS57129036A
JPS57129036A JP56013729A JP1372981A JPS57129036A JP S57129036 A JPS57129036 A JP S57129036A JP 56013729 A JP56013729 A JP 56013729A JP 1372981 A JP1372981 A JP 1372981A JP S57129036 A JPS57129036 A JP S57129036A
Authority
JP
Japan
Prior art keywords
optical
propagated
area
wavelength dispersion
platelike
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP56013729A
Other languages
Japanese (ja)
Other versions
JPS5927535B2 (en
Inventor
Kazuhito Furuya
Yasuharu Suematsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOKYO KOGYO DAIGAKU
TOUKIYOU KOGYO DAIGAKU
Tokyo Institute of Technology NUC
Original Assignee
TOKYO KOGYO DAIGAKU
TOUKIYOU KOGYO DAIGAKU
Tokyo Institute of Technology NUC
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 TOKYO KOGYO DAIGAKU, TOUKIYOU KOGYO DAIGAKU, Tokyo Institute of Technology NUC filed Critical TOKYO KOGYO DAIGAKU
Priority to JP56013729A priority Critical patent/JPS5927535B2/en
Publication of JPS57129036A publication Critical patent/JPS57129036A/en
Publication of JPS5927535B2 publication Critical patent/JPS5927535B2/en
Expired legal-status Critical Current

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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4215—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers
    • 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
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29323—Coupling to or out of the diffractive element through the lateral surface of the 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
    • 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
    • G02B6/34—Optical coupling means utilising prism or grating
    • 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
    • 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
    • H04B10/25133—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion including a lumped electrical or optical dispersion compensator

Abstract

PURPOSE:To negate wavelength dispersion generated in an optical transmission signal, and to change it to a wide band, by providing an optical equalizer having a reverse wavelength dispersion characteristic with respect to an optical fiber wavelength dispersion characteristic, on the receiving terminal of an optical transmission line consisting of optical fibers. CONSTITUTION:An optical pulse transmission signal transmitted through a single-mode optical fibers 5 is converted to a parallel light beam by an integrated lens 9, and is propagated in a platelike optical waveguide 6. A lattice groove 7C is notched in an area 7A on the surface of a glass material substrate, its normal makes an angle of 45 deg. against the propagating direction of an optical pulse signal, and intervals between the respective lattice grooves are decreased gradually in accordance with a coordinate value (x). Accordingly, the parallel light beam injected to the platelike optical waveguide 6 and converted is totally reflected while it is propagated in the area 7A, is deflected by 90 deg., is made incident to an area 7B, subsequently is deflected by 90 deg., is propagated in the X axis direction, and is led to a photodetector 11 through an integrated lens 10 provided on the glass material substrate.
JP56013729A 1981-02-03 1981-02-03 Optical fiber communication method Expired JPS5927535B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56013729A JPS5927535B2 (en) 1981-02-03 1981-02-03 Optical fiber communication method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56013729A JPS5927535B2 (en) 1981-02-03 1981-02-03 Optical fiber communication method

Publications (2)

Publication Number Publication Date
JPS57129036A true JPS57129036A (en) 1982-08-10
JPS5927535B2 JPS5927535B2 (en) 1984-07-06

Family

ID=11841322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56013729A Expired JPS5927535B2 (en) 1981-02-03 1981-02-03 Optical fiber communication method

Country Status (1)

Country Link
JP (1) JPS5927535B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5570439A (en) * 1993-01-19 1996-10-29 Hitachi, Ltd. Optical waveguide device and optical transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5570439A (en) * 1993-01-19 1996-10-29 Hitachi, Ltd. Optical waveguide device and optical transmission system

Also Published As

Publication number Publication date
JPS5927535B2 (en) 1984-07-06

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