JPS5616336A - Optical communication apparatus - Google Patents

Optical communication apparatus

Info

Publication number
JPS5616336A
JPS5616336A JP9247279A JP9247279A JPS5616336A JP S5616336 A JPS5616336 A JP S5616336A JP 9247279 A JP9247279 A JP 9247279A JP 9247279 A JP9247279 A JP 9247279A JP S5616336 A JPS5616336 A JP S5616336A
Authority
JP
Japan
Prior art keywords
noise
optical fiber
contrast ratio
speckle pattern
fixed length
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.)
Pending
Application number
JP9247279A
Other languages
Japanese (ja)
Inventor
Katsuyoshi Ito
Akira Fujita
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9247279A priority Critical patent/JPS5616336A/en
Publication of JPS5616336A publication Critical patent/JPS5616336A/en
Pending 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
    • G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
    • G02B6/4203—Optical features
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To reduce occurrence of both the signal distortion and the noise, by connecting the optical fiber bundle of a fixed length to the light source having the laser diode LD so that the contrast ratio of the speckle pattern is set to a prescribed value or less. CONSTITUTION:Light emitting part 10 consists of LD100, optical fiber bundle 15 of a fixed length which has no connecting point to LD100, and optical connector 20 each. The photosignal sent from part 10 is led to light receiving part 50 via transmitting optical fiber 30 and connecting optical connector 40 each. Then bundle 15 is set to the prescribed length by which the contrast ratio of the speckle pattern is reduced less than the prescribed value. As a result, both the mode noise and the perturbation noise can be reduced, thus reducing both the amplitude distortion and the noise.
JP9247279A 1979-07-18 1979-07-18 Optical communication apparatus Pending JPS5616336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9247279A JPS5616336A (en) 1979-07-18 1979-07-18 Optical communication apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9247279A JPS5616336A (en) 1979-07-18 1979-07-18 Optical communication apparatus

Publications (1)

Publication Number Publication Date
JPS5616336A true JPS5616336A (en) 1981-02-17

Family

ID=14055260

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9247279A Pending JPS5616336A (en) 1979-07-18 1979-07-18 Optical communication apparatus

Country Status (1)

Country Link
JP (1) JPS5616336A (en)

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