KR850004450A - 광학섬유의 성형방법 - Google Patents

광학섬유의 성형방법 Download PDF

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Publication number
KR850004450A
KR850004450A KR1019840008438A KR840008438A KR850004450A KR 850004450 A KR850004450 A KR 850004450A KR 1019840008438 A KR1019840008438 A KR 1019840008438A KR 840008438 A KR840008438 A KR 840008438A KR 850004450 A KR850004450 A KR 850004450A
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KR
South Korea
Prior art keywords
rod
glass
composition
preform
core
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KR1019840008438A
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English (en)
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KR920001385B1 (ko
Inventor
에드워드 버키 죠지
Original Assignee
알프레드 엘 미챌슨
코닝 글래스 워크
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Publication of KR850004450A publication Critical patent/KR850004450A/ko
Application granted granted Critical
Publication of KR920001385B1 publication Critical patent/KR920001385B1/ko

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/10—Non-chemical treatment
    • C03B37/12—Non-chemical treatment of fibres or filaments during winding up
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
    • C03B37/01222—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube for making preforms of multiple core optical fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B20/00—Processes specially adapted for the production of quartz or fused silica articles, not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
    • C03B37/01217—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube for making preforms of polarisation-maintaining optical fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/30—Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres
    • C03B2203/31—Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres by use of stress-imparting rods, e.g. by insertion
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/34—Plural core other than bundles, e.g. double core

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

내용 없음

Description

광학섬유의 성형방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (8)

  1. 제 1조성의 글래스의 실린더형 예비성형물(38)을 제공하고, 예비성형물은 제1 조성의 글래스(56, 56′, 86)로 둘러싸인 중앙에 배치된 글래스 코어를 갖추고 있으며, 글래스 코어는 굴절율이 제 1 조성의 굴절율보다 크고 ; 종방향으로 연장된 다수의 구공(58, 78)을 예비성형물에 형성하며 ; 예비성형물이 중앙에-배치된 글래스 코어를 갖추고 있을 경우 연화점이 제 1 조성물의 연화점보다 낮고 코어 부분이 예비성형물에 제공되어 있지 않을 경우 굴절율이 제 1 조성의 굴절율보다 높은 로드의 적어도 일부분이 제 2 글래스 조성으로 이루어진 다수의 로드(60, 81, 83)를 제공하고 ; 각 로드(60, 81, 83)의 제 1 단부를 각 구공(58, 78)으로 삽입하고 실질적으로 각 구공의 전체 길이가 각 로드로 채워질 때까지 로드를 계속 삽입하고 ; 로드가 용융됨으로써 로드의 상응하는 구공으로 로드가 계속 떨어질 수 없도록 각 로드(60, 81, 83)의 반대 단부를 지지하고 ; 로드(60, 81, 83)가 정지되는 단부의 반대편에 있는 생성된 조립체의 단부를 가열하고 ; 조립체의 가열된 단부로부터 섬유를 연신하는 단계를 포함함을 특징으로 하여 광학섬유를 성형하는 방법.
  2. 제1항에 있어서, 다수의 로드를 제공하는 단계가 단면적이 구공(58)의 단면적보다 약간 작은 로드(60)를 제공하는 단계를 포함하는데, 단 로드의 반대 단부(65)에서 로드의 단면적은 구공의 단면적보다 크며, 각 로드의 반대 단부를 지지하는 단계는 확대된 로드의 반대 단부(65)가 예비성형물과 맞물려 있고 로드가 구공으로 추가로 들어가는 것이 방지될 때까지 로드(60)의 제 1 단부를 상응하는 구공(58)으로 삽입하는 단계를 포함하는 방법.
  3. 제2항에 있어서, 로드(60)를 삽입하는 단계에 앞서, 예비성형물이 단부에서 글래스 실린더(68)의 외주에 플랫 단부표면(53)을 삽입시킬 로드(60)를 가지며, 가열 및 연신전에 진공 접속부(74)를 글래스 실린더(68)에 부착시키는 방법.
  4. 제1항 내지 제3항 중의 어느 한 항에 있어서, 로드(60, 83)가 조성이 글래스 코어와 상이한 클래딩 글래스(64)층으로 둘러싸인 글래스 코어(62)로 이루어지는 방법.
  5. 제1항 내지 제3항 중의 어느 한 항에 있어서, 로드가 조성이 예비 성형 클래딩 글래스(56)와 동일한 글래스(64)층으로 둘러싸인 글래스 코어(62)로 이루어지는 방법.
  6. 제1항 내지 제3항 중의 어느 한 항에 있어서, 구공(78)이 비원형 단부표면이고 로드(81, 83)가 실질적으로 구공(78)과 같은 단부표면 배열을 갖는 방법.
  7. 제1항에 있어서, 예비성형물이 제 1 조성의 글래스(56, 56′, 86)로 둘러싸인 중앙에 배치된 글래스 코어(54, 54′, 85)를 지니고, 글래스 코어(54, 54′, 85)가 굴절율이 제 1 조성보다 큰 방법.
  8. 제7항에 있어서, 구공을 형성하는 단계가 글래스 코어(54, 54′, 85)의 반대측에 종방향으로 연장된 다수의 구공을 형성하는 단계를 포함하며, 여기서 글래스 로드(60, 81, 83)가 열팽창계수가 제1 조성과 상이한 글래스인 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019840008438A 1983-12-27 1984-12-27 광학섬유의 성형방법 KR920001385B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/565,637 US4561871A (en) 1983-12-27 1983-12-27 Method of making polarization preserving optical fiber
US565637 1983-12-27

Publications (2)

Publication Number Publication Date
KR850004450A true KR850004450A (ko) 1985-07-15
KR920001385B1 KR920001385B1 (ko) 1992-02-13

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Application Number Title Priority Date Filing Date
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Country Status (18)

Country Link
US (1) US4561871A (ko)
EP (1) EP0147225B1 (ko)
JP (1) JPS60155535A (ko)
KR (1) KR920001385B1 (ko)
AR (1) AR241106A1 (ko)
AT (1) ATE50236T1 (ko)
AU (1) AU565861B2 (ko)
BR (1) BR8406646A (ko)
CA (1) CA1278685C (ko)
DE (1) DE3481302D1 (ko)
DK (1) DK621184A (ko)
ES (1) ES8606212A1 (ko)
FI (1) FI77217C (ko)
HK (1) HK7491A (ko)
IL (1) IL73499A (ko)
IN (1) IN163771B (ko)
NO (1) NO163448C (ko)
SG (1) SG68490G (ko)

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Also Published As

Publication number Publication date
HK7491A (en) 1991-02-01
DE3481302D1 (de) 1990-03-15
FI845096A0 (fi) 1984-12-21
EP0147225B1 (en) 1990-02-07
KR920001385B1 (ko) 1992-02-13
FI845096L (fi) 1985-06-28
IN163771B (ko) 1988-11-05
JPH0559051B2 (ko) 1993-08-30
JPS60155535A (ja) 1985-08-15
IL73499A0 (en) 1985-02-28
SG68490G (en) 1990-09-21
ES8606212A1 (es) 1986-04-16
EP0147225A2 (en) 1985-07-03
NO163448B (no) 1990-02-19
AR241106A1 (es) 1991-11-15
BR8406646A (pt) 1985-10-15
US4561871A (en) 1985-12-31
IL73499A (en) 1992-06-21
DK621184A (da) 1985-06-28
FI77217C (fi) 1989-02-10
AU565861B2 (en) 1987-10-01
FI77217B (fi) 1988-10-31
DK621184D0 (da) 1984-12-21
NO163448C (no) 1990-05-30
AR241106A2 (es) 1991-11-15
EP0147225A3 (en) 1986-02-12
CA1278685C (en) 1991-01-08
NO845213L (no) 1985-06-28
ES538501A0 (es) 1986-04-16
ATE50236T1 (de) 1990-02-15
AU3521684A (en) 1985-07-04

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