IT1252264B - Procedimento per la realizzazione a fusione di accoppiatori monomodali a fibre ottiche - Google Patents
Procedimento per la realizzazione a fusione di accoppiatori monomodali a fibre otticheInfo
- Publication number
- IT1252264B IT1252264B ITMI913070A ITMI913070A IT1252264B IT 1252264 B IT1252264 B IT 1252264B IT MI913070 A ITMI913070 A IT MI913070A IT MI913070 A ITMI913070 A IT MI913070A IT 1252264 B IT1252264 B IT 1252264B
- Authority
- IT
- Italy
- Prior art keywords
- fusion
- procedure
- optical fiber
- mode optical
- fiber couplers
- Prior art date
Links
- 230000004927 fusion Effects 0.000 title abstract 5
- 239000013307 optical fiber Substances 0.000 title abstract 4
- 239000000835 fiber Substances 0.000 abstract 3
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
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
- G02B6/2835—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals formed or shaped by thermal treatment, e.g. couplers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Procedimento per la realizzazione a fusione di accoppiatori monomodali a fibre ottiche, in specie di tipo 2x2, comprendente le seguenti fasi di:a) accostamento delle fibre ottiche per un breve tratto nella zona centrale;b) fusione delle fibre ottiche;c) allungamento delle fibre ottiche durante la fusione;in cui la fase di allungamento delle fibre durante la fusione viene eseguita sottoponendo le fibre ad una trazione variabile nel tempo con andamento crescente, in particolare con legge logaritmica.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI913070A IT1252264B (it) | 1991-11-18 | 1991-11-18 | Procedimento per la realizzazione a fusione di accoppiatori monomodali a fibre ottiche |
EP92203506A EP0543456A1 (en) | 1991-11-18 | 1992-11-14 | Method for fusion-forming monomodal fibre-optic couplers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI913070A IT1252264B (it) | 1991-11-18 | 1991-11-18 | Procedimento per la realizzazione a fusione di accoppiatori monomodali a fibre ottiche |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI913070A0 ITMI913070A0 (it) | 1991-11-18 |
ITMI913070A1 ITMI913070A1 (it) | 1993-05-18 |
IT1252264B true IT1252264B (it) | 1995-06-08 |
Family
ID=11361127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI913070A IT1252264B (it) | 1991-11-18 | 1991-11-18 | Procedimento per la realizzazione a fusione di accoppiatori monomodali a fibre ottiche |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0543456A1 (it) |
IT (1) | IT1252264B (it) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5620494A (en) * | 1994-06-14 | 1997-04-15 | Sumitomo Electric Industries, Ltd. | Method for manufacturing optical fiber coupler |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4799949A (en) * | 1985-08-15 | 1989-01-24 | Corning Glass Works | Method of making low loss fiber optic coupler |
AU608269B2 (en) * | 1986-11-14 | 1991-03-28 | Commonwealth Of Australia, The | Splicing optical fibre |
US4765816A (en) * | 1987-10-23 | 1988-08-23 | Mcdonnell Douglas Corporation | Method and apparatus for making optical fiber couplers |
JPH02137806A (ja) * | 1988-11-18 | 1990-05-28 | Japan Aviation Electron Ind Ltd | 光ファイバカプラの製造方法 |
GB8906327D0 (en) * | 1989-03-20 | 1989-05-04 | British Telecomm | A method of forming an optical fibre star coupler and a coupler so formed |
US5011251A (en) * | 1989-12-08 | 1991-04-30 | Corning Incorporated | Achromatic fiber optic coupler |
JPH055815A (ja) * | 1991-02-19 | 1993-01-14 | Sumitomo Electric Ind Ltd | 光フアイバカプラの製造方法 |
-
1991
- 1991-11-18 IT ITMI913070A patent/IT1252264B/it active IP Right Grant
-
1992
- 1992-11-14 EP EP92203506A patent/EP0543456A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
ITMI913070A0 (it) | 1991-11-18 |
ITMI913070A1 (it) | 1993-05-18 |
EP0543456A1 (en) | 1993-05-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19961127 |