JPS5732404A - Optical fiber of lower mode - Google Patents

Optical fiber of lower mode

Info

Publication number
JPS5732404A
JPS5732404A JP10652780A JP10652780A JPS5732404A JP S5732404 A JPS5732404 A JP S5732404A JP 10652780 A JP10652780 A JP 10652780A JP 10652780 A JP10652780 A JP 10652780A JP S5732404 A JPS5732404 A JP S5732404A
Authority
JP
Japan
Prior art keywords
refractivity
core
optical fiber
denoted
center
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
JP10652780A
Other languages
Japanese (ja)
Other versions
JPS5831566B2 (en
Inventor
Kenichi Kitayama
Yasuyuki Kato
Yoshiyuki Aomi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP55106527A priority Critical patent/JPS5831566B2/en
Publication of JPS5732404A publication Critical patent/JPS5732404A/en
Publication of JPS5831566B2 publication Critical patent/JPS5831566B2/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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03622—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only
    • G02B6/03627—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only arranged - +
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
    • G02B6/0288—Multimode fibre, e.g. graded index core for compensating modal dispersion

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Waveguides (AREA)

Abstract

PURPOSE:To facilitate manufacture and designing of an optical fiber of double- layer structure which has a core whose refractivity decreases uniformly from its center part to its outside and constant-refractivity cladding outside of the core, by making the optical fiber meet prescribed requirements. CONSTITUTION:The refractivity of the center of a core, that of cladding, and a difference in specific refractivity are denoted as (n), n2 and DELTA, and the radius of the core, wavelength, and constants are also denoted as (a), lambda, and alpha and rho. Then, refractivity at a position (r) away from the core center is determined as shown by expressions I-IV. Further, the cutting V value of mode LP11 and that of mode LP21 are denoted as Vc11 and Vc21, and values of alpha, rho, n1, DELTA, lambda, and (a) are set in expressions V, VI and VII.
JP55106527A 1980-08-01 1980-08-01 low-order mode optical fiber Expired JPS5831566B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55106527A JPS5831566B2 (en) 1980-08-01 1980-08-01 low-order mode optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55106527A JPS5831566B2 (en) 1980-08-01 1980-08-01 low-order mode optical fiber

Publications (2)

Publication Number Publication Date
JPS5732404A true JPS5732404A (en) 1982-02-22
JPS5831566B2 JPS5831566B2 (en) 1983-07-07

Family

ID=14435861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55106527A Expired JPS5831566B2 (en) 1980-08-01 1980-08-01 low-order mode optical fiber

Country Status (1)

Country Link
JP (1) JPS5831566B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6417482U (en) * 1987-07-22 1989-01-27
US6954573B2 (en) 2001-11-30 2005-10-11 Samsung Electronics Co., Ltd. Wide band dispersion-controlled fiber
DE102011109838A1 (en) 2011-05-27 2012-11-29 J-Plasma Gmbh optical fiber
JP2016075943A (en) * 2011-02-24 2016-05-12 オーエフエス ファイテル，エルエルシー Graded-index few-mode fiber designs for spatial multiplexing
EP2674795A4 (en) * 2011-02-09 2018-04-25 Furukawa Electric Co., Ltd. Optical fiber and optical transmission system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966146A (en) * 1972-09-11 1974-06-26
JPS50131535A (en) * 1974-04-03 1975-10-17
JPS5250246A (en) * 1975-10-20 1977-04-22 Hitachi Ltd Light transmitting line
JPS543553A (en) * 1977-06-10 1979-01-11 Nippon Telegr & Teleph Corp <Ntt> Optical line
JPS5443749A (en) * 1977-09-13 1979-04-06 Nippon Telegr & Teleph Corp <Ntt> Wide range oprical fiber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966146A (en) * 1972-09-11 1974-06-26
JPS50131535A (en) * 1974-04-03 1975-10-17
JPS5250246A (en) * 1975-10-20 1977-04-22 Hitachi Ltd Light transmitting line
JPS543553A (en) * 1977-06-10 1979-01-11 Nippon Telegr & Teleph Corp <Ntt> Optical line
JPS5443749A (en) * 1977-09-13 1979-04-06 Nippon Telegr & Teleph Corp <Ntt> Wide range oprical fiber

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6417482U (en) * 1987-07-22 1989-01-27
US6954573B2 (en) 2001-11-30 2005-10-11 Samsung Electronics Co., Ltd. Wide band dispersion-controlled fiber
EP2674795A4 (en) * 2011-02-09 2018-04-25 Furukawa Electric Co., Ltd. Optical fiber and optical transmission system
JP2016075943A (en) * 2011-02-24 2016-05-12 オーエフエス ファイテル，エルエルシー Graded-index few-mode fiber designs for spatial multiplexing
DE102011109838A1 (en) 2011-05-27 2012-11-29 J-Plasma Gmbh optical fiber

Also Published As

Publication number Publication date
JPS5831566B2 (en) 1983-07-07

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