IT991384B - Fibra di fotoguida inguainata con bassa attenuazione - Google Patents
Fibra di fotoguida inguainata con bassa attenuazioneInfo
- Publication number
- IT991384B IT991384B IT27037/73A IT2703773A IT991384B IT 991384 B IT991384 B IT 991384B IT 27037/73 A IT27037/73 A IT 27037/73A IT 2703773 A IT2703773 A IT 2703773A IT 991384 B IT991384 B IT 991384B
- Authority
- IT
- Italy
- Prior art keywords
- guide fiber
- low attenuation
- attenuation
- low
- fiber
- Prior art date
Links
Classifications
-
- 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
- C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
-
- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/12—Non-circular or non-elliptical cross-section, e.g. planar core
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Optical Integrated Circuits (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2237820A DE2237820A1 (de) | 1972-08-01 | 1972-08-01 | Ummantelte lichtleitfaser geringer daempfung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT991384B true IT991384B (it) | 1975-07-30 |
Family
ID=5852361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT27037/73A IT991384B (it) | 1972-08-01 | 1973-07-25 | Fibra di fotoguida inguainata con bassa attenuazione |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS4954046A (it) |
| AT (1) | ATA461373A (it) |
| AU (1) | AU5748773A (it) |
| BE (1) | BE803104A (it) |
| CH (1) | CH556033A (it) |
| DE (1) | DE2237820A1 (it) |
| FR (1) | FR2194975B3 (it) |
| GB (1) | GB1401398A (it) |
| IT (1) | IT991384B (it) |
| LU (1) | LU68116A1 (it) |
| NL (1) | NL7310533A (it) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50119646A (it) * | 1974-03-02 | 1975-09-19 | ||
| GB1448080A (en) * | 1975-04-10 | 1976-09-02 | Standard Telephones Cables Ltd | Optical fibre transducer |
| JPS51151143A (en) * | 1975-06-20 | 1976-12-25 | Hitachi Ltd | Optical filter device |
| US4057322A (en) * | 1975-11-05 | 1977-11-08 | International Telephone And Telegraph Corporation | Precision surface optical fibers |
| US4260220A (en) * | 1979-06-15 | 1981-04-07 | Canadian Patents And Development Limited | Prism light guide having surfaces which are in octature |
| JPH0652328B2 (ja) * | 1985-07-18 | 1994-07-06 | 株式会社潤工社 | 誘電体線路 |
| FR2603995B1 (fr) * | 1986-09-12 | 1991-01-25 | Centre Nat Rech Scient | Dispositif d'assemblage precis d'elements optiques dans des positions predeterminees, applicable notamment a des interferometres |
| US4787708A (en) * | 1987-05-08 | 1988-11-29 | Tir Systems Ltd. | Apparatus for continuously controlled emission of light from prism light guide |
| JPH10203841A (ja) * | 1997-01-22 | 1998-08-04 | Hoya Corp | ガラスプリフォーム及びガラスファイバの製造方法 |
| DE102017119798B4 (de) | 2017-08-29 | 2022-12-01 | J-Fiber Gmbh | Verfahren zum Herstellen einer Glasfaser-Preform mit einem Kern mit einem polygonalen Kernquerschnitt |
-
1972
- 1972-08-01 DE DE2237820A patent/DE2237820A1/de active Pending
-
1973
- 1973-05-25 CH CH751273A patent/CH556033A/xx not_active IP Right Cessation
- 1973-05-25 AT AT461373A patent/ATA461373A/de not_active Application Discontinuation
- 1973-06-19 GB GB2909373A patent/GB1401398A/en not_active Expired
- 1973-06-28 AU AU57487/73A patent/AU5748773A/en not_active Expired
- 1973-07-25 IT IT27037/73A patent/IT991384B/it active
- 1973-07-27 FR FR7327657A patent/FR2194975B3/fr not_active Expired
- 1973-07-30 LU LU68116A patent/LU68116A1/xx unknown
- 1973-07-30 JP JP48085062A patent/JPS4954046A/ja active Pending
- 1973-07-30 NL NL7310533A patent/NL7310533A/xx unknown
- 1973-08-01 BE BE134138A patent/BE803104A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2194975A1 (it) | 1974-03-01 |
| ATA461373A (de) | 1975-06-15 |
| GB1401398A (en) | 1975-07-16 |
| CH556033A (de) | 1974-11-15 |
| DE2237820A1 (de) | 1974-02-14 |
| AU5748773A (en) | 1975-01-09 |
| FR2194975B3 (it) | 1976-07-09 |
| LU68116A1 (it) | 1973-10-23 |
| JPS4954046A (it) | 1974-05-25 |
| NL7310533A (it) | 1974-02-05 |
| BE803104A (fr) | 1973-12-03 |
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