KR960014984A - 광섬유 단면이 일정 열전도율 기울기를 갖는 단일모드 광섬유 모재 및 그 제조 방법 - Google Patents

광섬유 단면이 일정 열전도율 기울기를 갖는 단일모드 광섬유 모재 및 그 제조 방법 Download PDF

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KR960014984A
KR960014984A KR1019940025705A KR19940025705A KR960014984A KR 960014984 A KR960014984 A KR 960014984A KR 1019940025705 A KR1019940025705 A KR 1019940025705A KR 19940025705 A KR19940025705 A KR 19940025705A KR 960014984 A KR960014984 A KR 960014984A
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optical fiber
quartz tube
base material
fiber base
manufacturing
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KR1019940025705A
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KR0162604B1 (ko
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오승헌
도균해
강선웅
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김광호
삼성전자 주식회사
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to GB9520410A priority patent/GB2293822B/en
Priority to DE19537379A priority patent/DE19537379C2/de
Priority to RU95117069A priority patent/RU2105733C1/ru
Priority to CN95115197A priority patent/CN1101553C/zh
Priority to JP7260429A priority patent/JP2971373B2/ja
Priority to FR9511848A priority patent/FR2725441B1/fr
Priority to US08/541,555 priority patent/US5702497A/en
Publication of KR960014984A publication Critical patent/KR960014984A/ko
Priority to US08/796,192 priority patent/US5942296A/en
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Publication of KR0162604B1 publication Critical patent/KR0162604B1/ko

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    • 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
    • C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/02—Pure silica glass, e.g. pure fused quartz
    • C03B2201/03—Impurity concentration specified
    • C03B2201/04—Hydroxyl ion (OH)
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/22—Radial profile of refractive index, composition or softening point
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/22—Radial profile of refractive index, composition or softening point
    • C03B2203/24—Single mode [SM or monomode]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
    • Y10T428/1314—Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
    • Y10T428/1317—Multilayer [continuous layer]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Compositions (AREA)

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야
광섬유에 관한 기술로 단일모드 광섬유 모재 및 제조방법을 개시한다.
2. 발명이 해결하려고 하는 기술적 과제
광섬유의 전형적인 광손실 예를들면 ⅰ) 레이리 산란손실 ⅱ) 불순물 금속이온 및 수산기에 의한 흡수손실 ⅲ) 도파로 구조불균일에 의한 손실등을 광섬유의 물성을 조절하므로 줄이고자 한다.
3. 발명의 해결방법의 요지
광섬유 모재의 단면이 코어의 중심에서 외부방향으로, 열전도율은 떨어지고 점성계수는 높은 물성으로 이루지도록 한다. 따라서 내부 클래드층은 열전도율이 높고 점성계수는 낮은 합성석영관을 사용하고 외부 클래드층은 상대적으로 합성석영관보다 열전도율이 낮고 점성계수가 높은 천연석영관을 사용한다.
4. 발명의 중요한 용도
광섬유가 사용되는 모든 제품 및 장비에 사용된다.

Description

광섬유 단면이 일정 열전도율 기울기를 갖는 단일모드 광섬유 모재 및 제조 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2(B)도는 제1도의 광섬유 인출공정에 사용되는 광섬유 최종모재(28)를 보여주는 도면,
제3도는 광섬유 인출공정을 수행하는 장치의 블럭도,
제6도는 온도에 따른 천연석영관과 합성석영관의 점성계수를 보여주는 도면.

Claims (9)

  1. 광섬유모재 제조방법에 있어서, 클래드로 사용되는 제1석영관을 제1열전도율을 가지도록 제조하는 제1석영관 제조과정과, 상기 제1석영관 속에 코어층과 클래드층을 내부증착하고 상기 제1석영관을 열로 부착하여 광섬유 예비모재를 제조과정과, 클래드로 사용되는 제2석영관을 적어도 상기 제1열전도율보다 적어도 낮은 제2열전도율을 갖도록 제조하는 제2석영관 제조과정과, 상기 광섬유 예비모재에 상기 제2석영관을 열로 부착하여 최종모재를 제조하는 과정으로 이루어짐을 특징으로 하는 제조방법.
  2. 제1항에 있어서, 상기 최종 모재에 부착된 상기 제2석영관은 상기 제2석영관의 내주에서 외주 방향으로 소정의 기울기로 열전도율이 떨어지면 적어도 하나 이상의 관으로 제조됨을 특징으로 하는 제조방법.
  3. 제2항에 있어서, 상기 광섬유 모재의 상기 제2석영관은 소정 횟수에 걸친 오버클래딩으로 제조됨을 특징으로 하는 광섬유 모재 제조방법.
  4. 제1항 내지 제3항 중 어느 하나의 항에 있어서, 상기 1차 석영관을 합성석영관으로 사용함을 특징으로 하는 광섬유 모재 제조방법.
  5. 제4항에 있어서, 상기 제2차 석영관을 천연석영관으로 사용함을 특징으로 하는 광섬유 모재 제조방법.
  6. 제4항에 있어서, 상기 합성석영관을 적어도 5ppm 이하의 수산(OH-)기를 갖도록 함을 특징으로 하는 광섬유 모재 제조방법.
  7. 코어 및 상기 코어를 둘러싸는 클래드를 구비한 광섬유 모재에 있어서, 중심축의 가까운 클래드에서 미리 설정된 최초의 열전도율을 가지고 중심축으로부터 외주의 방향으로 점차적으로 열전도율이 소정 기울기로 떨어짐을 특징으로 하는 광섬유 모재.
  8. 제7항에 있어서, 상기 광섬유 모재는 중심축의 가까운 클래드에서 기준 점성도를 가지고 중심축으로부터 점차적으로 멀어짐에 대응하여 상기 점성도보다 점성도가 커짐을 특징으로 하는 광섬유 모재.
  9. 제7항에 있어서, 상기 광섬유 모재는 단일모드에 사용됨을 특징으로 하는 광섬유 모재.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940025705A 1994-10-07 1994-10-07 광 섬유 모재 제조 방법 KR0162604B1 (ko)

Priority Applications (9)

Application Number Priority Date Filing Date Title
KR1019940025705A KR0162604B1 (ko) 1994-10-07 1994-10-07 광 섬유 모재 제조 방법
DE19537379A DE19537379C2 (de) 1994-10-07 1995-10-06 Optische Faservorform, Verfahren zur Herstellung und Verwendung derselben
RU95117069A RU2105733C1 (ru) 1994-10-07 1995-10-06 Заготовка волоконного световода и способ ее получения
CN95115197A CN1101553C (zh) 1994-10-07 1995-10-06 光纤预制件及其制造方法
GB9520410A GB2293822B (en) 1994-10-07 1995-10-06 Optical fibre preforms
JP7260429A JP2971373B2 (ja) 1994-10-07 1995-10-06 径方向で熱伝導率変化を有する光ファイバ母材の製法
FR9511848A FR2725441B1 (fr) 1994-10-07 1995-10-09 Preforme de fibre optique et son procede de fabrication
US08/541,555 US5702497A (en) 1994-10-07 1995-10-10 Method of producing an optical fiber preform from a plurality of tubes having different thermal conductivities
US08/796,192 US5942296A (en) 1994-10-07 1997-02-07 Optical fiber preform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940025705A KR0162604B1 (ko) 1994-10-07 1994-10-07 광 섬유 모재 제조 방법

Publications (2)

Publication Number Publication Date
KR960014984A true KR960014984A (ko) 1996-05-22
KR0162604B1 KR0162604B1 (ko) 1999-04-15

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KR1019940025705A KR0162604B1 (ko) 1994-10-07 1994-10-07 광 섬유 모재 제조 방법

Country Status (8)

Country Link
US (2) US5702497A (ko)
JP (1) JP2971373B2 (ko)
KR (1) KR0162604B1 (ko)
CN (1) CN1101553C (ko)
DE (1) DE19537379C2 (ko)
FR (1) FR2725441B1 (ko)
GB (1) GB2293822B (ko)
RU (1) RU2105733C1 (ko)

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JP2971373B2 (ja) 1999-11-02
FR2725441A1 (fr) 1996-04-12
JPH08208259A (ja) 1996-08-13
GB9520410D0 (en) 1995-12-06
DE19537379C2 (de) 2000-08-03
CN1183566A (zh) 1998-06-03
CN1101553C (zh) 2003-02-12
GB2293822A (en) 1996-04-10
US5702497A (en) 1997-12-30
KR0162604B1 (ko) 1999-04-15
US5942296A (en) 1999-08-24
DE19537379A1 (de) 1996-04-11
RU2105733C1 (ru) 1998-02-27
GB2293822B (en) 1996-12-11
FR2725441B1 (fr) 1997-06-13

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