JPS57191601A - Low polarized wave dispersed single polarized wave optical fiber - Google Patents

Low polarized wave dispersed single polarized wave optical fiber

Info

Publication number
JPS57191601A
JPS57191601A JP56076685A JP7668581A JPS57191601A JP S57191601 A JPS57191601 A JP S57191601A JP 56076685 A JP56076685 A JP 56076685A JP 7668581 A JP7668581 A JP 7668581A JP S57191601 A JPS57191601 A JP S57191601A
Authority
JP
Japan
Prior art keywords
polarized wave
fiber
optical fibers
dispersion
fibers
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
JP56076685A
Other languages
Japanese (ja)
Inventor
Katsunari Okamoto
Juichi Noda
Toshito Hosaka
Yutaka Sasaki
Tetsuo Miya
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 JP56076685A priority Critical patent/JPS57191601A/en
Publication of JPS57191601A publication Critical patent/JPS57191601A/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
    • G02B6/10—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)

Abstract

PURPOSE:To reduce the dispersion of the polarized wave without imparing the polarizing characteristics, by connecting the single polarized wave optical fibers which are used for the coherent transmission system, etc. by aligning the main axes of the optical fibers after defining the total length of the optical fiber having a large degree of dispersion of the polarized wave under a specific relation. CONSTITUTION:The oval core optical fibers 4 and 5 are formed by enclosing an oval core 2 with a cladding 1 having a uniform refractive index. The delay times tau11 and tau21 are set to the beams polarized toward the axes (x) and (y) of the fiber 4, and the fiber length is set at L1. The delay times tau12 and tau22 are set to the beams polarized toward the axes (x) and (y) of the fiber 5, and the fiber length is set at L2. Furthermore the sum of (tau11-tau21)XL1 and (tau12-tau22)X L2 is set zero. Such fibers 4 and 5 are connected to each other with their main axes aligned together. In such way, the dispersion of the polarized wave can be minimized without imparing the polarizing characteristics. The asymmetrical cladding optical fibers or the fibers of different types can be connected in the same way as mentioned above.
JP56076685A 1981-05-22 1981-05-22 Low polarized wave dispersed single polarized wave optical fiber Pending JPS57191601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56076685A JPS57191601A (en) 1981-05-22 1981-05-22 Low polarized wave dispersed single polarized wave optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56076685A JPS57191601A (en) 1981-05-22 1981-05-22 Low polarized wave dispersed single polarized wave optical fiber

Publications (1)

Publication Number Publication Date
JPS57191601A true JPS57191601A (en) 1982-11-25

Family

ID=13612294

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56076685A Pending JPS57191601A (en) 1981-05-22 1981-05-22 Low polarized wave dispersed single polarized wave optical fiber

Country Status (1)

Country Link
JP (1) JPS57191601A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61103329A (en) * 1984-10-26 1986-05-21 Nippon Telegr & Teleph Corp <Ntt> Method and apparatus for giving group delay time difference of optical signal
JPS6333710A (en) * 1986-07-28 1988-02-13 Nippon Telegr & Teleph Corp <Ntt> Quartz optical waveguide with stress applying part

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5435748A (en) * 1977-08-25 1979-03-16 Furukawa Electric Co Ltd:The Improvement method of light pulse spreading by material disperson

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5435748A (en) * 1977-08-25 1979-03-16 Furukawa Electric Co Ltd:The Improvement method of light pulse spreading by material disperson

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61103329A (en) * 1984-10-26 1986-05-21 Nippon Telegr & Teleph Corp <Ntt> Method and apparatus for giving group delay time difference of optical signal
JPS6333710A (en) * 1986-07-28 1988-02-13 Nippon Telegr & Teleph Corp <Ntt> Quartz optical waveguide with stress applying part

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