KR850000540A - 단일 모드 광도파섬유 - Google Patents

단일 모드 광도파섬유 Download PDF

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Publication number
KR850000540A
KR850000540A KR1019840002720A KR840002720A KR850000540A KR 850000540 A KR850000540 A KR 850000540A KR 1019840002720 A KR1019840002720 A KR 1019840002720A KR 840002720 A KR840002720 A KR 840002720A KR 850000540 A KR850000540 A KR 850000540A
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KR
South Korea
Prior art keywords
refractive index
optical waveguide
single mode
mode optical
suppressed
Prior art date
Application number
KR1019840002720A
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English (en)
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KR910007895B1 (ko
Inventor
아디세샤이아 바가바툴라 벤카타
Original Assignee
알프레드 엘·마이클슨
코닝 글라스 워크스
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23973172&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR850000540(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 알프레드 엘·마이클슨, 코닝 글라스 워크스 filed Critical 알프레드 엘·마이클슨
Publication of KR850000540A publication Critical patent/KR850000540A/ko
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Publication of KR910007895B1 publication Critical patent/KR910007895B1/ko

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
    • G02B6/02219—Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
    • G02B6/02228—Dispersion flattened fibres, i.e. having a low dispersion variation over an extended wavelength range
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
    • G02B6/02219—Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
    • G02B6/02228—Dispersion flattened fibres, i.e. having a low dispersion variation over an extended wavelength range
    • G02B6/02233—Dispersion flattened fibres, i.e. having a low dispersion variation over an extended wavelength range having at least two dispersion zero wavelengths
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03605—Highest refractive index not on central axis
    • G02B6/03611—Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03638—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only
    • G02B6/03644—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only arranged - + -
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03661—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 4 layers only
    • G02B6/03666—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 4 layers only arranged - + - +
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03688—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 5 or more layers
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
    • G02B6/02219—Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
    • G02B6/02276—Dispersion shifted fibres, i.e. zero dispersion at 1550 nm

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Optical Integrated Circuits (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Glass Compositions (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Detergent Compositions (AREA)
  • Gyroscopes (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Laser Surgery Devices (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

내용 없음.

Description

단일 모드 광도파섬유
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 광도파섬유에 대한 단면도.
제2도, 제3도는 본 발명의 조건을 만족하는 다수의 굴절율 측면도에 대한 도해도.

Claims (8)

  1. 최대굴절율 n1과 반경 a를 갖춘 투광물질코어와, 상기 코어의 외부 표면상에 이하의 피복 굴절율을 갖는 투광 피복물질층을 포함하는 단일 모드 광도파섬유로서, 상기 코어는 둘 이상의 중심 세그먼트로 둘러싸인 중심부를 구비하고, 상기 중심부와 상기 중심 세그먼트의 최내측은 억압된 굴절율 영역에 의해 분리되고 각각의 두 인접 세그먼트는 억압된 굴절율 영역에 의해 분리되며, 상기 억압된 굴절율 영역의 최내측 내부반경 ai은 0이상이고 상기 억압된 굴절율을 갖는 영역의 최외측 최대반경 a0은 a이하이며, 상기 피복은 상기 코어의 외부표면과 인접한 억압된 굴절율 층을 포함하는 것을 특징으로 하는 단일 모드 광도파섬유.
  2. 제1항에 있어서, 상기 중심부의 최대 굴절율과 상기 각각의 세그먼트의 최대 굴절율은 동일한 것을 특징으로 하는 단일모드 광도파섬유.
  3. 제1항에 있어서, 상기 중심부의 최대 굴절율과 상기 세그먼트의 최대 굴절율은 모두 동일하지는 않는 것을 특징으로 하는 단일모드 광도파섬유.
  4. 제1항에 있어서, 상기 억압된 굴절율 영역의 굴절율은 동일한 것을 특징으로 하는 단일 모드 광도파섬유.
  5. 제1항에 있어서, 상기 억압된 굴절율 영역의 굴절율은 동일하지 않는 것을 특징으로 하는 단일모드 광도파섬유.
  6. 제1항에 있어서, 상기 중심부, 상기 세그먼트 및 억압된 굴절율의 환상층의 합성 굴절율은 정현형태인 것을 특징으로 하는 단일모드 광도파 섬유.
  7. 제6항에 있어서, 상기 코아의 상기 정현형태의 합성 굴절율의 변화는 방사형으로 감소하는 기본 값에 부가되는 것을 특징으로 하는 단일모드 광도파섬유.
  8. 제6항에 있어서 상기 코어의 상기 정현형태의 합성 굴절율 변화는 방사형으로 증가하는 기본 값에 부가되는 것을 특징으로 하는 단일모드 광도파섬유.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019840002720A 1983-05-20 1984-05-18 단일 모드 광 도파 섬유 KR910007895B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US49656083A 1983-05-20 1983-05-20
US496,560 1983-05-20
US496560 1983-05-20

Publications (2)

Publication Number Publication Date
KR850000540A true KR850000540A (ko) 1985-02-28
KR910007895B1 KR910007895B1 (ko) 1991-10-04

Family

ID=23973172

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840002720A KR910007895B1 (ko) 1983-05-20 1984-05-18 단일 모드 광 도파 섬유

Country Status (17)

Country Link
EP (1) EP0127408B2 (ko)
JP (3) JPS59226301A (ko)
KR (1) KR910007895B1 (ko)
AT (1) ATE48479T1 (ko)
AU (1) AU561632B2 (ko)
BR (1) BR8402305A (ko)
CA (1) CA1246363A (ko)
DE (1) DE3480665D1 (ko)
DK (1) DK163454B (ko)
ES (1) ES8606674A1 (ko)
FI (1) FI82314C (ko)
HK (1) HK88790A (ko)
IL (1) IL71644A (ko)
IN (1) IN160397B (ko)
MX (1) MX158483A (ko)
NO (1) NO168391C (ko)
SG (1) SG73990G (ko)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641917A (en) * 1985-02-08 1987-02-10 At&T Bell Laboratories Single mode optical fiber
JPS6252508A (ja) * 1985-09-02 1987-03-07 Nippon Telegr & Teleph Corp <Ntt> 光フアイバ
JP2533083B2 (ja) * 1985-10-04 1996-09-11 住友電気工業株式会社 １．５μ帯零分散シングルモ−ドフアイバ
JPS62291605A (ja) * 1986-06-11 1987-12-18 Sumitomo Electric Ind Ltd 光フアイバ
US4852968A (en) * 1986-08-08 1989-08-01 American Telephone And Telegraph Company, At&T Bell Laboratories Optical fiber comprising a refractive index trench
JPS63208004A (ja) * 1987-02-25 1988-08-29 Sumitomo Electric Ind Ltd 光フアイバ
AU662625B2 (en) * 1992-08-19 1995-09-07 Nippon Telegraph & Telephone Corporation Mode field diameter conversion fiber
US5483612A (en) * 1994-10-17 1996-01-09 Corning Incorporated Increased capacity optical waveguide
FR2782391A1 (fr) * 1998-08-13 2000-02-18 Alsthom Cge Alcatel Ajout d'un anneau externe au profil d'indice d'une fibre optique monomode a dispersion decalee
FR2782392A1 (fr) * 1999-08-23 2000-02-18 Cit Alcatel Fibre optique monomode a dispersion decalee comprenant un anneau exterieur
DE102011009242B4 (de) * 2010-11-04 2020-09-03 J-Plasma Gmbh Lichtwellenleiter und Halbzeug zur Herstellung eines Lichtwellenleiters mit biegeoptimierten Eigenschaften
JP5496370B2 (ja) * 2011-01-24 2014-05-21 ミヤチテクノス株式会社 光ファイバ、及びそれを備えたレーザ加工装置
DE102011052197B4 (de) * 2011-07-27 2019-08-01 J-Plasma Gmbh Lichtwellenleiter mit biegeoptimierten Eigenschaften
JP2016148749A (ja) * 2015-02-12 2016-08-18 株式会社フジクラ 分散シフト光ファイバ
JP2020505641A (ja) * 2017-01-24 2020-02-20 コーニング インコーポレイテッド 光ファイバーおよびそれを備える光学系
WO2024035270A1 (en) * 2022-08-10 2024-02-15 Huawei Technologies Co., Ltd. Optical fiber and design method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149772A (en) * 1975-09-22 1979-04-17 Northern Electric Company Limited Optical fibre having low mode dispersion
JPS52106748A (en) * 1976-02-16 1977-09-07 Nippon Telegr & Teleph Corp <Ntt> Light transmission channel
US4265515A (en) * 1978-05-08 1981-05-05 International Telephone And Telegraph Corporation Optical fiber waveguide with effective refractive index profile
US4385802A (en) * 1980-06-09 1983-05-31 Corning Glass Works Long wavelength, low-loss optical waveguide
GB2100464B (en) * 1981-05-11 1985-07-17 Bicc Plc An improved optical fibre
CA1205307A (en) * 1981-12-07 1986-06-03 Venkata A. Bhagavatula Low dispersion, low-loss single-mode optical waveguide
CA1248386A (en) * 1982-03-11 1989-01-10 Leonard G. Cohen Quadruple-clad optical fiberguide
JPH035721A (ja) * 1989-06-02 1991-01-11 Toshiba Corp 液晶表示素子

Also Published As

Publication number Publication date
EP0127408B1 (en) 1989-12-06
FI841998A (fi) 1984-11-21
CA1246363A (en) 1988-12-13
FI82314C (fi) 1991-02-11
DK246784A (da) 1984-11-21
EP0127408A1 (en) 1984-12-05
NO168391C (no) 1992-02-12
AU2808684A (en) 1984-11-22
MX158483A (es) 1989-02-03
ES532253A0 (es) 1986-04-01
JPH0743694U (ja) 1995-09-05
JPH04104604U (ja) 1992-09-09
FI841998A0 (fi) 1984-05-17
IL71644A (en) 1987-11-30
EP0127408B2 (en) 1993-11-10
FI82314B (fi) 1990-10-31
KR910007895B1 (ko) 1991-10-04
DK246784D0 (da) 1984-05-17
JPS59226301A (ja) 1984-12-19
NO168391B (no) 1991-11-04
HK88790A (en) 1990-11-09
DK163454B (da) 1992-03-02
IL71644A0 (en) 1984-07-31
BR8402305A (pt) 1984-12-26
SG73990G (en) 1990-11-23
DE3480665D1 (de) 1990-01-11
ATE48479T1 (de) 1989-12-15
IN160397B (ko) 1987-07-11
NO841986L (no) 1984-11-21
ES8606674A1 (es) 1986-04-01
AU561632B2 (en) 1987-05-14

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