KR840002528A - 광학 도파관 - Google Patents
광학 도파관 Download PDFInfo
- Publication number
- KR840002528A KR840002528A KR1019820005262A KR820005262A KR840002528A KR 840002528 A KR840002528 A KR 840002528A KR 1019820005262 A KR1019820005262 A KR 1019820005262A KR 820005262 A KR820005262 A KR 820005262A KR 840002528 A KR840002528 A KR 840002528A
- Authority
- KR
- South Korea
- Prior art keywords
- optical waveguide
- refractive index
- radius
- center
- maximum
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims description 9
- 239000012780 transparent material Substances 0.000 claims 2
- 239000011247 coating layer Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 1
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
- 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
- G02B6/02238—Low dispersion slope fibres
-
- 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
-
- 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
- G02B6/02214—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Optical Integrated Circuits (AREA)
- Glass Compositions (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Optical Communication System (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- External Artificial Organs (AREA)
- Prostheses (AREA)
- Paper (AREA)
- User Interface Of Digital Computer (AREA)
- Laser Surgery Devices (AREA)
- Eye Examination Apparatus (AREA)
Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 광학 도파관 섬유조직의 단면도.
제2도와 제3도는 본 발명의 조건에 만족되는 여러종류의 굴절률에 대한 그래프.
Claims (5)
- 광학도파관에 있어서, 최대굴절률이 n1이고 반지름 a인 투명한 물질로 이루어진 중심부와 이 중심부를 굴절률이 n2(n1보다 작다)인 투명한 물질로 피복한 피복층으로 광학도파관을 구성시키되, 이 도파관의 중심부위에 내부반경 a1가 0보다 크고 최대반경 a0가 a보다 작은 굴절률이 저하된 부위가 함유되어 있음을 특징으로 한 광학도파관.
- 제1항에 있어서, (n1-n2)/(n1-n3)의 양(n3는 중심부위에 있는 굴절률이 저하된 부위의 최대굴절률이다)이 2.0이하인 광학도파관.
- 제2항에 있어서, 중심부위 중에서 반경이 0-ai인 부위와 ao-a인 부위의 굴절률이 실질적으로 균일한 광학도파관.
- 제2항에 있어서, 중심부의 외측부와 내측부의 굴절률이 방사상으로 균일하지 않은 광학도파관.
- 제4항에 있어서, 중심부위의 내측부와 외측부의 굴절률이 방정식 (n)1=n1[1-Δ(r/a)α](이 방정식에서는 α는 0부터 ∞까지의 매개변수이다)에 따라 변화되는 광학도파관.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US32836981A | 1981-12-07 | 1981-12-07 | |
US328.369 | 1981-12-07 | ||
US328,369 | 1981-12-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR840002528A true KR840002528A (ko) | 1984-07-02 |
KR880001339B1 KR880001339B1 (ko) | 1988-07-25 |
Family
ID=23280717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR8205262A KR880001339B1 (ko) | 1981-12-07 | 1982-11-22 | 단일 모드 광섬유 도파관 |
Country Status (15)
Country | Link |
---|---|
EP (1) | EP0083843B1 (ko) |
JP (1) | JPS58104040A (ko) |
KR (1) | KR880001339B1 (ko) |
AT (1) | ATE46770T1 (ko) |
AU (1) | AU555648B2 (ko) |
BR (1) | BR8206652A (ko) |
CA (1) | CA1205307A (ko) |
DE (1) | DE3279964D1 (ko) |
DK (1) | DK158684C (ko) |
ES (1) | ES8308641A1 (ko) |
FI (1) | FI81684C (ko) |
IL (1) | IL67211A (ko) |
IN (1) | IN156700B (ko) |
MX (1) | MX152385A (ko) |
NO (1) | NO166151C (ko) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1248386A (en) * | 1982-03-11 | 1989-01-10 | Leonard G. Cohen | Quadruple-clad optical fiberguide |
IL71644A (en) * | 1983-05-20 | 1987-11-30 | Corning Glass Works | Low dispersion,low-loss single-mode optical waveguide |
DE3376884D1 (de) * | 1983-06-29 | 1988-07-07 | Ant Nachrichtentech | Single-mode w-fibre |
JPH068185B2 (ja) * | 1984-11-27 | 1994-02-02 | 住友電気工業株式会社 | 光ファイバ用母材の製造方法 |
JPS6252508A (ja) * | 1985-09-02 | 1987-03-07 | Nippon Telegr & Teleph Corp <Ntt> | 光フアイバ |
JPS6287907A (ja) * | 1985-10-14 | 1987-04-22 | Sumitomo Electric Ind Ltd | 1.5ミクロン帯用シングルモ−ド光フアイバ |
US4852968A (en) * | 1986-08-08 | 1989-08-01 | American Telephone And Telegraph Company, At&T Bell Laboratories | Optical fiber comprising a refractive index trench |
US4877304A (en) * | 1987-09-09 | 1989-10-31 | Corning Incorporated | Few-mode/single-mode fiber |
US4877306A (en) * | 1987-09-30 | 1989-10-31 | Corning Glass Works | Coated optical waveguide fibers |
FR2635876B1 (fr) * | 1988-08-26 | 1992-10-16 | Comp Generale Electricite | Fibre optique monomode protegee contre le detournement d'informations transmises et procede de transmission utilisant cette fibre |
FR2738430B1 (fr) * | 1990-09-21 | 1998-03-13 | Alsthom Cge Alcatel | Procede et dispositif de transmission d'information sur fibre optique avec detection et/ou localisation d'intrusion |
DE4111238A1 (de) * | 1991-04-08 | 1992-10-15 | Hilti Ag | Werkzeug zur zerspanung von werkstoffen |
US5553185A (en) * | 1994-12-27 | 1996-09-03 | Corning Incorporated | Controlled dispersion optical waveguide |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3997241A (en) * | 1973-06-07 | 1976-12-14 | Hitachi, Ltd. | Optical waveguide transmitting light wave energy in single mode |
US4149772A (en) * | 1975-09-22 | 1979-04-17 | Northern Electric Company Limited | Optical fibre having low mode dispersion |
JPS5250246A (en) * | 1975-10-20 | 1977-04-22 | Hitachi Ltd | Light transmitting line |
JPS52106748A (en) * | 1976-02-16 | 1977-09-07 | Nippon Telegr & Teleph Corp <Ntt> | Light transmission channel |
JPS543553A (en) * | 1977-06-10 | 1979-01-11 | Nippon Telegr & Teleph Corp <Ntt> | Optical line |
US4265515A (en) * | 1978-05-08 | 1981-05-05 | International Telephone And Telegraph Corporation | Optical fiber waveguide with effective refractive index profile |
US4229070A (en) * | 1978-07-31 | 1980-10-21 | Corning Glass Works | High bandwidth optical waveguide having B2 O3 free core and method of fabrication |
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 |
-
1982
- 1982-11-02 CA CA000414693A patent/CA1205307A/en not_active Expired
- 1982-11-09 IL IL67211A patent/IL67211A/xx not_active IP Right Cessation
- 1982-11-11 DK DK502282A patent/DK158684C/da active
- 1982-11-17 IN IN1341/CAL/82A patent/IN156700B/en unknown
- 1982-11-18 BR BR8206652A patent/BR8206652A/pt not_active IP Right Cessation
- 1982-11-19 ES ES517508A patent/ES8308641A1/es not_active Expired
- 1982-11-22 KR KR8205262A patent/KR880001339B1/ko active
- 1982-12-01 AU AU91042/82A patent/AU555648B2/en not_active Expired
- 1982-12-03 FI FI824178A patent/FI81684C/fi not_active IP Right Cessation
- 1982-12-03 MX MX195433A patent/MX152385A/es unknown
- 1982-12-06 DE DE8282306476T patent/DE3279964D1/de not_active Expired
- 1982-12-06 JP JP57212843A patent/JPS58104040A/ja active Granted
- 1982-12-06 NO NO824089A patent/NO166151C/no not_active IP Right Cessation
- 1982-12-06 AT AT82306476T patent/ATE46770T1/de not_active IP Right Cessation
- 1982-12-06 EP EP82306476A patent/EP0083843B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU555648B2 (en) | 1986-10-02 |
DK158684C (da) | 1991-02-25 |
EP0083843A3 (en) | 1984-01-04 |
CA1205307A (en) | 1986-06-03 |
NO166151B (no) | 1991-02-25 |
EP0083843B1 (en) | 1989-09-27 |
BR8206652A (pt) | 1983-11-01 |
AU9104282A (en) | 1983-06-16 |
DE3279964D1 (en) | 1989-11-02 |
FI824178L (fi) | 1983-06-08 |
ATE46770T1 (de) | 1989-10-15 |
NO166151C (no) | 1991-06-05 |
FI81684C (fi) | 1990-11-12 |
JPS58104040A (ja) | 1983-06-21 |
IN156700B (ko) | 1985-10-19 |
IL67211A0 (en) | 1983-03-31 |
FI824178A0 (fi) | 1982-12-03 |
DK502282A (da) | 1983-06-08 |
JPH035721B2 (ko) | 1991-01-28 |
KR880001339B1 (ko) | 1988-07-25 |
FI81684B (fi) | 1990-07-31 |
ES517508A0 (es) | 1983-10-01 |
ES8308641A1 (es) | 1983-10-01 |
EP0083843A2 (en) | 1983-07-20 |
DK158684B (da) | 1990-07-02 |
IL67211A (en) | 1986-02-28 |
MX152385A (es) | 1985-07-09 |
NO824089L (no) | 1983-06-08 |
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