JPS5697303A - Optical fiber - Google Patents

Optical fiber

Info

Publication number
JPS5697303A
JPS5697303A JP17081779A JP17081779A JPS5697303A JP S5697303 A JPS5697303 A JP S5697303A JP 17081779 A JP17081779 A JP 17081779A JP 17081779 A JP17081779 A JP 17081779A JP S5697303 A JPS5697303 A JP S5697303A
Authority
JP
Japan
Prior art keywords
optical fiber
neutron rays
irradiation
damage
optical transmission
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
JP17081779A
Other languages
Japanese (ja)
Inventor
Takao Shioda
Kazuo Sanada
Takeru Fukuda
Koichi Inada
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.)
Fujikura Ltd
Original Assignee
Fujikura 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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP17081779A priority Critical patent/JPS5697303A/en
Publication of JPS5697303A publication Critical patent/JPS5697303A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Glass Compositions (AREA)

Abstract

PURPOSE: To maintain good optical transmission chracteristics without receiving any damage through irradiation of neutron rays by providing a coating layer mixed with specific boron compounds to an optical fiber.
CONSTITUTION: A primary coat 3, an intermediate layer 4 consisting of B metal, a B compound such as B4C, BN, B2O3 or their mixture, and PVC, polyethylene, etc., and an outer layer 5 of nylon or the like are provided on an optical fiber 2 consisting essentially of SiO2. Even if the optical fiber formed in this way is used in a place such as atomic reactor where it receives irradiation of neutron rays, it does not receive any damage owing to neutron rays, its optical transmission characteristics are maintained, and the light loss of the optical fiber does not change.
COPYRIGHT: (C)1981,JPO&Japio
JP17081779A 1979-12-29 1979-12-29 Optical fiber Pending JPS5697303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17081779A JPS5697303A (en) 1979-12-29 1979-12-29 Optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17081779A JPS5697303A (en) 1979-12-29 1979-12-29 Optical fiber

Publications (1)

Publication Number Publication Date
JPS5697303A true JPS5697303A (en) 1981-08-06

Family

ID=15911875

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17081779A Pending JPS5697303A (en) 1979-12-29 1979-12-29 Optical fiber

Country Status (1)

Country Link
JP (1) JPS5697303A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857802U (en) * 1981-10-15 1983-04-19 日本原子力研究所 radiation resistant optical fiber
JPS5872107A (en) * 1981-10-24 1983-04-30 Fujikura Ltd Radiation resistant optical fiber
JPS5933405A (en) * 1982-08-20 1984-02-23 Fujikura Ltd Optical fiber cable resistant to radiant rays
US4589725A (en) * 1984-03-28 1986-05-20 Andrew Corporation Optical-fiber directional coupler using boron oxide as interstitial material
WO1998051632A1 (en) * 1997-05-14 1998-11-19 France Telecom Method for depositing a coating layer on an optical fibre while it is being drawn and device for its implementation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50110341A (en) * 1974-02-07 1975-08-30
JPS5271248A (en) * 1975-12-11 1977-06-14 Nec Corp Optical fiber material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50110341A (en) * 1974-02-07 1975-08-30
JPS5271248A (en) * 1975-12-11 1977-06-14 Nec Corp Optical fiber material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857802U (en) * 1981-10-15 1983-04-19 日本原子力研究所 radiation resistant optical fiber
JPS5872107A (en) * 1981-10-24 1983-04-30 Fujikura Ltd Radiation resistant optical fiber
JPS5933405A (en) * 1982-08-20 1984-02-23 Fujikura Ltd Optical fiber cable resistant to radiant rays
US4589725A (en) * 1984-03-28 1986-05-20 Andrew Corporation Optical-fiber directional coupler using boron oxide as interstitial material
WO1998051632A1 (en) * 1997-05-14 1998-11-19 France Telecom Method for depositing a coating layer on an optical fibre while it is being drawn and device for its implementation
FR2763327A1 (en) * 1997-05-14 1998-11-20 France Telecom METHOD FOR DEPOSITING A COATING LAYER ON AN OPTICAL FIBER DURING ITS FIBRATION AND DEVICE FOR IMPLEMENTING IT
US6475620B1 (en) 1997-05-14 2002-11-05 France Telecom (Sa) Method for depositing a coating layer on an optical fiber while it is being drawn and device for its implementation

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