KR19990029630A - 파장분할 다중통신용 광섬유 - Google Patents
파장분할 다중통신용 광섬유 Download PDFInfo
- Publication number
- KR19990029630A KR19990029630A KR1019980036992A KR19980036992A KR19990029630A KR 19990029630 A KR19990029630 A KR 19990029630A KR 1019980036992 A KR1019980036992 A KR 1019980036992A KR 19980036992 A KR19980036992 A KR 19980036992A KR 19990029630 A KR19990029630 A KR 19990029630A
- Authority
- KR
- South Korea
- Prior art keywords
- refractive index
- core
- optical fiber
- clad
- outside
- Prior art date
Links
Classifications
-
- 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
- G02B6/036—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
- G02B6/03622—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 2 layers only
- G02B6/03633—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 2 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
- G02B6/02214—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
- G02B6/02266—Positive dispersion fibres at 1550 nm
- G02B6/02271—Non-zero dispersion shifted fibres, i.e. having a small positive dispersion at 1550 nm, e.g. ITU-T G.655 dispersion between 1.0 to 10 ps/nm.km for avoiding nonlinear effects
-
- 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
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
- G02B6/0281—Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core
-
- 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
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
- G02B6/0286—Combination of graded index in the central core segment and a graded index layer external to the central core segment
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
Description
Claims (5)
- 파장 분할 다중 광통신용 광섬유에 있어서,중심축으로부터 소정 크기의 반경으로 형성되어 일정한 굴절율을 가지는 인너 코아;상기 인너 코아의 굴절율보다는 작으면서 내측으로부터 외측으로 선형적으로 감소되는 굴절율을 가지며, 상기 인너코아의 외측에 소정 크기의 반경으로 형성된 아웃터 코아; 및상기 아웃터 코아의 외측에 소정 크기의 반경을 가지고 형성된 클래드를 포함하며,1550nm 파장에서 2.0 - 4.0 ps nm-1Km-1의 분산값을 갖는 것을 특징으로 하는 광섬유.
- 제1항에 있어서, 상기 클래드는상기 아웃터 코아의 최소 굴절율보다 작은 굴절율을 가지는 인너 클래드; 및상기 인너 클래드의 외측에 상기 인너 클래드의 굴절율보다 작은 굴절율을 가지는 아웃터 클래드로 형성되는 것을 특징으로 하는 광섬유.
- 파장 분할 다중 광통신용 광섬유에 있어서,중심축으로부터 소정 크기의 반경으로 형성되어 일정한 굴절율을 가지는 인너 코아;상기 인너 코아의 굴절율보다는 작으면서 내측으로부터 외측으로 선형적으로 감소되는 굴절율을 가지며, 상기 인너코아의 외측에 소정 크기의 반경으로 형성된 아웃터 코아;상기 아웃터 코아의 외측에 소정 크기의 반경을 가지고 형성된 인너 클래드; 및상기 인너 클래드의 굴절율보다는 작으면서 내측으로부터 외측으로 선형적으로 감소되는 굴절율을 가지며, 상기 인너 클래드의 외측에 소정 크기의 반경으로 형성된 아웃터 클래드를 포함하며,1550nm 파장에서 2.0 - 4.0 ps nm-1Km-1의 분산값을 갖는 것을 특징으로 하는 광섬유.
- 제3항에 있어서,상기 아웃터 코아의 굴절율 기울기와 상기 아웃터 클래드의 굴절율 기울기가 서로 동일한 것을 특징으로 하는 광섬유.
- 제3항에 있어서,상기 아웃터 코아의 굴절율 기울기 또는 상기 아웃터 클래드의 굴절율 기울기가 0.003에서 0.005의 범위 내의 값을 가지는 것을 특징으로 하는 광섬유.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970047450A KR19990025725A (ko) | 1997-09-13 | 1997-09-13 | 파장 분할 다중 통신용 광섬유 및 그 제조 방법 |
KR97-47450 | 1997-09-13 | ||
KR1019970047450 | 1997-09-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990029630A true KR19990029630A (ko) | 1999-04-26 |
KR100433297B1 KR100433297B1 (ko) | 2005-08-05 |
Family
ID=19521340
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970047450A KR19990025725A (ko) | 1997-09-13 | 1997-09-13 | 파장 분할 다중 통신용 광섬유 및 그 제조 방법 |
KR1019980036992A KR100433297B1 (ko) | 1997-09-13 | 1998-09-08 | 파장분할다중통신용광섬유 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970047450A KR19990025725A (ko) | 1997-09-13 | 1997-09-13 | 파장 분할 다중 통신용 광섬유 및 그 제조 방법 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6307993B1 (ko) |
KR (2) | KR19990025725A (ko) |
CN (1) | CN1093267C (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100342711B1 (ko) * | 1998-12-17 | 2002-10-25 | 엘지전선 주식회사 | 삼중클래드의분산이동광섬유 |
JP4237357B2 (ja) * | 1999-10-08 | 2009-03-11 | 信越化学工業株式会社 | 変形第1クラッドを有する光ファイバ母材の製造方法及び光ファイバ母材並びに光ファイバ |
NL1018338C2 (nl) * | 2001-06-20 | 2002-12-30 | Draka Fibre Technology Bv | Optische vezel. |
KR100584951B1 (ko) * | 2003-07-23 | 2006-05-29 | 엘에스전선 주식회사 | 고속, 대용량의 파장분할다중화 시스템에 적합한 광섬유,이를 이용한 광전송선 및 광통신 시스템 |
KR100602755B1 (ko) * | 2004-07-08 | 2006-07-20 | 엘에스전선 주식회사 | 영분산 파장이 단파장대로 이동된 광섬유, 이를 이용한광전송선 및 광통신 시스템 |
KR100858672B1 (ko) * | 2006-11-22 | 2008-09-16 | 주식회사 이오테크닉스 | 광섬유 유닛 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4070091A (en) * | 1976-04-16 | 1978-01-24 | Northern Telecom Limited | Optical fibre with enhanced security |
US4715679A (en) | 1981-12-07 | 1987-12-29 | Corning Glass Works | Low dispersion, low-loss single-mode optical waveguide |
US4560247A (en) * | 1983-07-01 | 1985-12-24 | Quartz Et Silice | Large bandwidth optical fibers |
JPS6252508A (ja) * | 1985-09-02 | 1987-03-07 | Nippon Telegr & Teleph Corp <Ntt> | 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 |
FR2724234B1 (fr) * | 1994-09-05 | 1997-01-03 | Alcatel Fibres Optiques | Fibre optique monomode a dispersion decalee |
US5483612A (en) * | 1994-10-17 | 1996-01-09 | Corning Incorporated | Increased capacity optical waveguide |
FR2728692B1 (fr) * | 1994-12-23 | 1997-01-31 | Alcatel Fibres Optiques | Fibre optique monomode |
US5835655A (en) * | 1995-01-26 | 1998-11-10 | Corning Incorporated | Large effective area waveguide fiber |
BR9500990A (pt) * | 1995-03-28 | 1995-08-01 | Abc Algar | Guia de onda ótico |
NL1000884C2 (nl) * | 1995-07-25 | 1997-01-28 | Univ Groningen | Transportvehikels voor macromoleculen. |
JPH10186156A (ja) * | 1996-12-26 | 1998-07-14 | Furukawa Electric Co Ltd:The | 階段型分散シフト光ファイバ |
-
1997
- 1997-09-13 KR KR1019970047450A patent/KR19990025725A/ko active Search and Examination
-
1998
- 1998-09-08 KR KR1019980036992A patent/KR100433297B1/ko not_active IP Right Cessation
- 1998-09-11 CN CN98119310A patent/CN1093267C/zh not_active Expired - Lifetime
- 1998-09-14 US US09/152,503 patent/US6307993B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR100433297B1 (ko) | 2005-08-05 |
KR19990025725A (ko) | 1999-04-06 |
CN1211739A (zh) | 1999-03-24 |
CN1093267C (zh) | 2002-10-23 |
US6307993B1 (en) | 2001-10-23 |
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