JPS5534564A - Optical fiber transmission system - Google Patents

Optical fiber transmission system

Info

Publication number
JPS5534564A
JPS5534564A JP10746478A JP10746478A JPS5534564A JP S5534564 A JPS5534564 A JP S5534564A JP 10746478 A JP10746478 A JP 10746478A JP 10746478 A JP10746478 A JP 10746478A JP S5534564 A JPS5534564 A JP S5534564A
Authority
JP
Japan
Prior art keywords
mode
lambdam
beams
optical
units
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
JP10746478A
Other languages
Japanese (ja)
Inventor
Haruo Sakaguchi
Norio Seki
Takaya Yamamoto
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP10746478A priority Critical patent/JPS5534564A/en
Publication of JPS5534564A publication Critical patent/JPS5534564A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H04B10/2581—Multimode 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/14—Mode converters
    • 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

Landscapes

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

Abstract

PURPOSE:To increase the degree of multiplication for the single-mode optical fiber wavelength multiple transmission system by providing the mode filter at the reception end to eliminate the higher-order mode at the multi-mode region and then utilizing also the basic mode of the multi-mode region. CONSTITUTION:Beams lambda1-lambdaM of different wavelengths sent from M units of optical transmitters 1-1-1-M are compounded through optical compounding unit 2. Optical fiber 6 is set as the single mode fiber to M-L units of beams lambda1-lambdaM-L and then functions as the multi-mode fiber to L units of beams lambdaM-L+1-lambdaM. Mode filter 7 eliminates the higher-order mode at the multi-mode region. And the dividing is given again into M units of beams lambda1-lambdaM through optical branching filter 4, and the divided beams are received by optical receivers 5-1-5-M. Filter 7 is formed by bending the area near the reception end of fiber 6 along its circumference.
JP10746478A 1978-09-04 1978-09-04 Optical fiber transmission system Pending JPS5534564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10746478A JPS5534564A (en) 1978-09-04 1978-09-04 Optical fiber transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10746478A JPS5534564A (en) 1978-09-04 1978-09-04 Optical fiber transmission system

Publications (1)

Publication Number Publication Date
JPS5534564A true JPS5534564A (en) 1980-03-11

Family

ID=14459840

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10746478A Pending JPS5534564A (en) 1978-09-04 1978-09-04 Optical fiber transmission system

Country Status (1)

Country Link
JP (1) JPS5534564A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63124633A (en) * 1986-10-31 1988-05-28 アルカテル・エヌ・ブイ Wide band optical communication system especially for subscriber domain
US5278688A (en) * 1990-04-24 1994-01-11 Ortel Corporation Fault tolerant fiber optic transmission system
US6498874B1 (en) * 1997-12-22 2002-12-24 Sumitomo Electric Industries, Ltd. Optical transmission line
NL1019047C2 (en) * 2001-09-26 2003-04-02 Univ Eindhoven Tech Method and system for transmitting microwave signals via a multi-mode optical fiber.
NL1028978C2 (en) * 2005-05-04 2006-11-07 Draka Comteq Bv Optical communication system and connection network provided with this.
JPWO2006013745A1 (en) * 2004-08-05 2008-05-01 松下電器産業株式会社 Multimode optical transmission system and multimode optical transmission method
JP2010118856A (en) * 2008-11-12 2010-05-27 Nippon Telegr & Teleph Corp <Ntt> Optical wavelength division multiplex communication system, exciter, and mode filter
JP2017050660A (en) * 2015-08-31 2017-03-09 日本電信電話株式会社 Optical transmission system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63124633A (en) * 1986-10-31 1988-05-28 アルカテル・エヌ・ブイ Wide band optical communication system especially for subscriber domain
US5278688A (en) * 1990-04-24 1994-01-11 Ortel Corporation Fault tolerant fiber optic transmission system
US6498874B1 (en) * 1997-12-22 2002-12-24 Sumitomo Electric Industries, Ltd. Optical transmission line
NL1019047C2 (en) * 2001-09-26 2003-04-02 Univ Eindhoven Tech Method and system for transmitting microwave signals via a multi-mode optical fiber.
WO2003036828A1 (en) * 2001-09-26 2003-05-01 Technische Universiteit Eindhoven Method and arrangement for microwave signals transmission through a multimode fibre
JPWO2006013745A1 (en) * 2004-08-05 2008-05-01 松下電器産業株式会社 Multimode optical transmission system and multimode optical transmission method
JP4699369B2 (en) * 2004-08-05 2011-06-08 パナソニック株式会社 Multimode optical transmission system and multimode optical transmission method
NL1028978C2 (en) * 2005-05-04 2006-11-07 Draka Comteq Bv Optical communication system and connection network provided with this.
EP1727302A1 (en) * 2005-05-04 2006-11-29 Draka Comteq B.V. An optical communication system as well as a access network provided therewith
JP2010118856A (en) * 2008-11-12 2010-05-27 Nippon Telegr & Teleph Corp <Ntt> Optical wavelength division multiplex communication system, exciter, and mode filter
JP2017050660A (en) * 2015-08-31 2017-03-09 日本電信電話株式会社 Optical transmission system

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