KR100368575B1 - 비영분산 천이 광섬유용 모재의 제조방법 - Google Patents
비영분산 천이 광섬유용 모재의 제조방법 Download PDFInfo
- Publication number
- KR100368575B1 KR100368575B1 KR10-1999-0050307A KR19990050307A KR100368575B1 KR 100368575 B1 KR100368575 B1 KR 100368575B1 KR 19990050307 A KR19990050307 A KR 19990050307A KR 100368575 B1 KR100368575 B1 KR 100368575B1
- Authority
- KR
- South Korea
- Prior art keywords
- optical fiber
- core
- refractive index
- gas
- cladding
- Prior art date
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Classifications
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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]
- C03B37/01413—Reactant delivery systems
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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]
- C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
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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
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
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- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
Description
Claims (1)
- 섬유 원료가스인 SiCl4, GeCl4와 연료가스인 H2, O2의 혼합가스를 버너에 의해서 분사하면서 광섬유용 모재를 제조하는 방법에 있어서,유리원료를 화염 가수분해 반응시키면서 코아 및 크래딩 조성을 가진 다공질 유리 미립자를 준비된 유리로드에 광섬유원료가스인 SiCl4, GeCl4와 연료가스인 H2, O2의 혼합가스를 버너의 화염을 인가하면서 퇴적시켜 코아용 수우트 퇴적체를 형성하는 1차 퇴적의 제1과정과,상기의 코아용 수우트 퇴적체를 He 10∼20 ℓ/min 또는 Cl2300∼1200 ㏄/min의 가스가 함유된 분위기와 로 온도 900∼1400℃ 조건의 로속에서 1차 탈수시키면서 OH기를 제거하는 제2과정과,상기의 OH기가 제거된 코아용 수우트 퇴적체를 1300∼1900℃의 로 온도 및 He 15∼35 ℓ/min 조건에서 1차 소결하여 투명 유리화하는 제3과정과,상기의 유리화된 수우트 퇴적체를 설계된 외경으로 연신하여 유리봉을 만드는 제4과정과,상기의 유리봉의 외주부에 다시 광섬유원료가스인 SiCl4와 연료가스인 H2, O2의 혼합가스를 버너의 화염을 인가하면서 화염가수분해 반응시켜 크래딩용 수우트를 퇴적시키는 공지의 2차퇴적의 제5과정과,상기의 크래딩용 수우트 퇴적체를 He가스 분위기와 1300∼1900℃의 로 온도 조건에서 2차 소결하는 공지의 제6과정에 의해 광섬유의 모재를 생성하여 광섬유 굴절율 프로파일이 사다리꼴형태이고, 사다리꼴 상층기저부(a)와 하측기저부(b)의 반경 방향에 대한 길이의 비율(a/b)이 0.3 내지 0.8이면서 광섬유 비굴절율차 △1(△1=n1-n2/n1, n1은 코아 굴절율, n2는 클래딩 굴절율)은 0.5∼0.8%, 광섬유 2차 코아와 클래딩의 비굴절률차 △2(△2=n3-n2/n3, n2는 클래딩 굴절율, n3는 코아 굴절율)는 0.05∼0.3% 정도를 나타내게 되어 영분산파장이 1530nm 이하 또는 1560nm 이상에 위치하고 영분산 기울기가 0.075 ps/nm2·km이하이며, 1550nm파장대에서 광섬유의 손실이 0.23 dB/km 이하가 되는 광섬유의 모재를 생성함을 특징으로 하는 비영분산 천이 광섬유용 모재의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0050307A KR100368575B1 (ko) | 1999-11-12 | 1999-11-12 | 비영분산 천이 광섬유용 모재의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0050307A KR100368575B1 (ko) | 1999-11-12 | 1999-11-12 | 비영분산 천이 광섬유용 모재의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010046512A KR20010046512A (ko) | 2001-06-15 |
KR100368575B1 true KR100368575B1 (ko) | 2003-01-24 |
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KR10-1999-0050307A KR100368575B1 (ko) | 1999-11-12 | 1999-11-12 | 비영분산 천이 광섬유용 모재의 제조방법 |
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KR (1) | KR100368575B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101287545B1 (ko) | 2012-02-02 | 2013-07-19 | 대한광통신 주식회사 | 유효면적이 증가된 분산이동 광섬유용 모재의 제조방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06316429A (ja) * | 1993-05-07 | 1994-11-15 | Fujikura Ltd | 分散シフト光ファイバ用母材の製造方法 |
JPH0781964A (ja) * | 1993-09-16 | 1995-03-28 | Mitsubishi Cable Ind Ltd | 分散シフト光ファイバのコア母材の製造方法 |
JPH1017333A (ja) * | 1996-07-02 | 1998-01-20 | Fujikura Ltd | ソリトン伝送用光ファイバの製造方法およびソリトン伝送用光ファイバ |
JPH1081528A (ja) * | 1996-09-05 | 1998-03-31 | Shin Etsu Chem Co Ltd | 分散シフト光ファイバー用ガラス母材の製造方法 |
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1999
- 1999-11-12 KR KR10-1999-0050307A patent/KR100368575B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06316429A (ja) * | 1993-05-07 | 1994-11-15 | Fujikura Ltd | 分散シフト光ファイバ用母材の製造方法 |
JPH0781964A (ja) * | 1993-09-16 | 1995-03-28 | Mitsubishi Cable Ind Ltd | 分散シフト光ファイバのコア母材の製造方法 |
JPH1017333A (ja) * | 1996-07-02 | 1998-01-20 | Fujikura Ltd | ソリトン伝送用光ファイバの製造方法およびソリトン伝送用光ファイバ |
JPH1081528A (ja) * | 1996-09-05 | 1998-03-31 | Shin Etsu Chem Co Ltd | 分散シフト光ファイバー用ガラス母材の製造方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101287545B1 (ko) | 2012-02-02 | 2013-07-19 | 대한광통신 주식회사 | 유효면적이 증가된 분산이동 광섬유용 모재의 제조방법 |
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Publication number | Publication date |
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KR20010046512A (ko) | 2001-06-15 |
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