JPS5726810A - Optical fiber - Google Patents

Optical fiber

Info

Publication number
JPS5726810A
JPS5726810A JP10179080A JP10179080A JPS5726810A JP S5726810 A JPS5726810 A JP S5726810A JP 10179080 A JP10179080 A JP 10179080A JP 10179080 A JP10179080 A JP 10179080A JP S5726810 A JPS5726810 A JP S5726810A
Authority
JP
Japan
Prior art keywords
core
optical fiber
mode
refractive index
base material
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
JP10179080A
Other languages
Japanese (ja)
Other versions
JPS5831565B2 (en
Inventor
Kenichi Kitayama
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 JP55101790A priority Critical patent/JPS5831565B2/en
Publication of JPS5726810A publication Critical patent/JPS5726810A/en
Publication of JPS5831565B2 publication Critical patent/JPS5831565B2/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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/105—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type having optical polarisation effects

Landscapes

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

Abstract

PURPOSE:To obtain an optical fiber having a core of a true circle by which a polarization direction of the lowest degree mode HE11 is kept constant, by varying a refractive index distribution of a core or a clad of an optical fiber, or both of them, in the circumferential direction. CONSTITUTION:Two optical fiber base material of core parts 1a, 1b whose refractive index is different with each other are combined so as to divide equally an angle to the core center into 4 parts, a new base material is manufactured, and it is drawn and is made an optical fiber 1. An even mode and an odd mode which are propagated in this core 1 and have polarization directions falling at right angles with each other, of the lowest degree mode HE11 cause a difference in a propagation constant and do not cause coupling between both the modes, therefore, the polarization direction of the HE11 mode is kept constant, and also the core 1 becomes a true circle.
JP55101790A 1980-07-23 1980-07-23 optical fiber Expired JPS5831565B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55101790A JPS5831565B2 (en) 1980-07-23 1980-07-23 optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55101790A JPS5831565B2 (en) 1980-07-23 1980-07-23 optical fiber

Publications (2)

Publication Number Publication Date
JPS5726810A true JPS5726810A (en) 1982-02-13
JPS5831565B2 JPS5831565B2 (en) 1983-07-07

Family

ID=14309955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55101790A Expired JPS5831565B2 (en) 1980-07-23 1980-07-23 optical fiber

Country Status (1)

Country Link
JP (1) JPS5831565B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58191503A (en) * 1982-05-01 1983-11-08 Junkosha Co Ltd Transmission line
EP0210806A2 (en) * 1985-07-26 1987-02-04 PIRELLI GENERAL plc Circularly birefringent dielectric waveguide
EP0215674A2 (en) * 1985-09-20 1987-03-25 Andrew A.G. Self-aligning optical fiber and fiber-ring optical resonator using same
EP0227366A2 (en) * 1985-12-11 1987-07-01 The University Of Southampton Optical fibres
WO1989011109A1 (en) * 1988-05-03 1989-11-16 The University Of Sydney Circularly birefringent optical fibre
WO2000014581A3 (en) * 1998-09-09 2000-08-24 Corning Inc Radially non uniform and azimuthally asymmetric optical waveguide fiber

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5039143A (en) * 1973-08-10 1975-04-11
JPS5050046A (en) * 1973-09-01 1975-05-06
JPS5248030A (en) * 1975-10-15 1977-04-16 Matsushita Electric Works Ltd Battery charging circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5039143A (en) * 1973-08-10 1975-04-11
JPS5050046A (en) * 1973-09-01 1975-05-06
JPS5248030A (en) * 1975-10-15 1977-04-16 Matsushita Electric Works Ltd Battery charging circuit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58191503A (en) * 1982-05-01 1983-11-08 Junkosha Co Ltd Transmission line
JPH0113761B2 (en) * 1982-05-01 1989-03-08 Junkosha Co Ltd
EP0210806A2 (en) * 1985-07-26 1987-02-04 PIRELLI GENERAL plc Circularly birefringent dielectric waveguide
EP0215674A2 (en) * 1985-09-20 1987-03-25 Andrew A.G. Self-aligning optical fiber and fiber-ring optical resonator using same
EP0227366A2 (en) * 1985-12-11 1987-07-01 The University Of Southampton Optical fibres
WO1989011109A1 (en) * 1988-05-03 1989-11-16 The University Of Sydney Circularly birefringent optical fibre
WO2000014581A3 (en) * 1998-09-09 2000-08-24 Corning Inc Radially non uniform and azimuthally asymmetric optical waveguide fiber

Also Published As

Publication number Publication date
JPS5831565B2 (en) 1983-07-07

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