JPS55110207A - Optical fiber device - Google Patents
Optical fiber deviceInfo
- Publication number
- JPS55110207A JPS55110207A JP1805679A JP1805679A JPS55110207A JP S55110207 A JPS55110207 A JP S55110207A JP 1805679 A JP1805679 A JP 1805679A JP 1805679 A JP1805679 A JP 1805679A JP S55110207 A JPS55110207 A JP S55110207A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- photosensitive material
- optical filter
- formula
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
PURPOSE:To achieve the higher efficiency of optical filter action by directly forming periodic gratings to the optical fiber portion thereby providing the function of an optical filter to the optical fiber itself. CONSTITUTION:The clad 6 portion of an optical fiber 5 is removed for a suitable length to exposure the core part 7, and photosensitive material 8 whose refractive index changes when exposed, e.g., photopolymer or amorphous semiconductor, is packed in this exposed portion. Further, parallel beams B1, B2 of Ar laser or the like showing sensitivity to the photosensitive material 8 are radiated simultaneously at an angle 2theta0 with each other. Thereby, the grating images 9 of period LAMBDA shown in formula 1 appear in the photosensitive material 8 along the axis of the fiber 5. Hence, if a light signal is sent to the optical fiber 5, only the light waves of the wavelength lambda shown by formula 2 are selectively reflected and the light waves of the other wavelengths transmit therethrough. In this way, the performance of optical filter action may be improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1805679A JPS55110207A (en) | 1979-02-19 | 1979-02-19 | Optical fiber device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1805679A JPS55110207A (en) | 1979-02-19 | 1979-02-19 | Optical fiber device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62125441A Division JPS63132205A (en) | 1987-05-22 | 1987-05-22 | Optical fiber device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55110207A true JPS55110207A (en) | 1980-08-25 |
Family
ID=11961030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1805679A Pending JPS55110207A (en) | 1979-02-19 | 1979-02-19 | Optical fiber device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55110207A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982004329A1 (en) * | 1981-05-26 | 1982-12-09 | Inc Gould | Optical fiber apparatus including substrate ruggedized optical fibers |
US4400056A (en) * | 1980-07-09 | 1983-08-23 | Her Majesty The Queen As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Evanescent-wave fiber reflector |
WO1986001303A1 (en) * | 1984-08-13 | 1986-02-27 | United Technologies Corporation | Method for impressing grating within fiber optics |
US4593969A (en) * | 1983-10-28 | 1986-06-10 | Chevron Research Company | Ruggedized grated optical fiber |
US4636031A (en) * | 1983-10-28 | 1987-01-13 | Chevron Research Company | Process of tuning a grated optical fiber and the tuned optical fiber |
US4761073A (en) * | 1984-08-13 | 1988-08-02 | United Technologies Corporation | Distributed, spatially resolving optical fiber strain gauge |
WO1997026571A3 (en) * | 1996-01-18 | 1998-08-27 | British Telecomm | Optical waveguide with photosensitive refractive index cladding |
US5830622A (en) * | 1994-02-14 | 1998-11-03 | The University Of Sydney | Optical grating |
US6449400B1 (en) | 1996-06-21 | 2002-09-10 | Kabushiki Gaisha Inter Action | Sensing optical fiber and sensor system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5115450A (en) * | 1974-07-29 | 1976-02-06 | Ritsuo Hasumi | HIKARIDENSOFUAIBAANO HANSHAFUIRUTA |
JPS5248334A (en) * | 1975-10-15 | 1977-04-18 | Nippon Telegr & Teleph Corp <Ntt> | Band-pass filter |
-
1979
- 1979-02-19 JP JP1805679A patent/JPS55110207A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5115450A (en) * | 1974-07-29 | 1976-02-06 | Ritsuo Hasumi | HIKARIDENSOFUAIBAANO HANSHAFUIRUTA |
JPS5248334A (en) * | 1975-10-15 | 1977-04-18 | Nippon Telegr & Teleph Corp <Ntt> | Band-pass filter |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4400056A (en) * | 1980-07-09 | 1983-08-23 | Her Majesty The Queen As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Evanescent-wave fiber reflector |
WO1982004329A1 (en) * | 1981-05-26 | 1982-12-09 | Inc Gould | Optical fiber apparatus including substrate ruggedized optical fibers |
JPS58500818A (en) * | 1981-05-26 | 1983-05-19 | グ−ルド インコ−ポレイテツド | Fiber optic device including optical fiber rendered resistant by a substrate |
US4444460A (en) * | 1981-05-26 | 1984-04-24 | Gould Inc. | Optical fiber apparatus including subtstrate ruggedized optical fibers |
US4636031A (en) * | 1983-10-28 | 1987-01-13 | Chevron Research Company | Process of tuning a grated optical fiber and the tuned optical fiber |
US4593969A (en) * | 1983-10-28 | 1986-06-10 | Chevron Research Company | Ruggedized grated optical fiber |
JPS62500052A (en) * | 1984-08-13 | 1987-01-08 | ユナイテツド テクノロジ−ズ コ−ポレ−シヨン | How to form a grating in an optical fiber |
WO1986001303A1 (en) * | 1984-08-13 | 1986-02-27 | United Technologies Corporation | Method for impressing grating within fiber optics |
US4761073A (en) * | 1984-08-13 | 1988-08-02 | United Technologies Corporation | Distributed, spatially resolving optical fiber strain gauge |
US4807950A (en) * | 1984-08-13 | 1989-02-28 | United Technologies Corporation | Method for impressing gratings within fiber optics |
US5830622A (en) * | 1994-02-14 | 1998-11-03 | The University Of Sydney | Optical grating |
WO1997026571A3 (en) * | 1996-01-18 | 1998-08-27 | British Telecomm | Optical waveguide with photosensitive refractive index cladding |
US6104852A (en) * | 1996-01-18 | 2000-08-15 | British Telecommunications Public Limited Company | Optical waveguide with photosensitive refractive index cladding |
US6449400B1 (en) | 1996-06-21 | 2002-09-10 | Kabushiki Gaisha Inter Action | Sensing optical fiber and sensor system |
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