JPS5256548A - Fiber for optical transmission - Google Patents

Fiber for optical transmission

Info

Publication number
JPS5256548A
JPS5256548A JP50132635A JP13263575A JPS5256548A JP S5256548 A JPS5256548 A JP S5256548A JP 50132635 A JP50132635 A JP 50132635A JP 13263575 A JP13263575 A JP 13263575A JP S5256548 A JPS5256548 A JP S5256548A
Authority
JP
Japan
Prior art keywords
optical transmission
fiber
ring portion
medium
refractive index
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
JP50132635A
Other languages
Japanese (ja)
Inventor
Tsuneo Nakahara
Masao Hoshikawa
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP50132635A priority Critical patent/JPS5256548A/en
Publication of JPS5256548A publication Critical patent/JPS5256548A/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
    • G02B6/02—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
    • G02B6/03605—Highest refractive index not on central axis
    • G02B6/03611—Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding
    • 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
    • G02B6/03633—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
    • G02B6/036—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
    • G02B6/03638—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 3 layers only
    • G02B6/03644—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 3 layers only arranged - + -

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE:To provide an optical transmission fiber, in which a portion having a lower refractive index is formed either between an O-ring portion and an inner medium or between the O-ring portion and an outer medium to facilitate control during production.
JP50132635A 1975-11-05 1975-11-05 Fiber for optical transmission Pending JPS5256548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50132635A JPS5256548A (en) 1975-11-05 1975-11-05 Fiber for optical transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50132635A JPS5256548A (en) 1975-11-05 1975-11-05 Fiber for optical transmission

Publications (1)

Publication Number Publication Date
JPS5256548A true JPS5256548A (en) 1977-05-10

Family

ID=15085926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50132635A Pending JPS5256548A (en) 1975-11-05 1975-11-05 Fiber for optical transmission

Country Status (1)

Country Link
JP (1) JPS5256548A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62250324A (en) * 1986-04-23 1987-10-31 Japan Steel & Tube Constr Co Ltd Optical fiber sensor for detecting leakage
JPH04128997U (en) * 1991-05-16 1992-11-25 大同工業株式会社 bicycle chain

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015565A (en) * 1973-06-07 1975-02-19
JPS50131535A (en) * 1974-04-03 1975-10-17

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015565A (en) * 1973-06-07 1975-02-19
JPS50131535A (en) * 1974-04-03 1975-10-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62250324A (en) * 1986-04-23 1987-10-31 Japan Steel & Tube Constr Co Ltd Optical fiber sensor for detecting leakage
JPH04128997U (en) * 1991-05-16 1992-11-25 大同工業株式会社 bicycle chain

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