CA2331487A1 - Process for writing bragg gratings, apparatus for the use of this process and bragg grating devices obtained by this process - Google Patents
Process for writing bragg gratings, apparatus for the use of this process and bragg grating devices obtained by this process Download PDFInfo
- Publication number
- CA2331487A1 CA2331487A1 CA002331487A CA2331487A CA2331487A1 CA 2331487 A1 CA2331487 A1 CA 2331487A1 CA 002331487 A CA002331487 A CA 002331487A CA 2331487 A CA2331487 A CA 2331487A CA 2331487 A1 CA2331487 A1 CA 2331487A1
- Authority
- CA
- Canada
- Prior art keywords
- substrate
- bragg grating
- bragg
- writing
- devices obtained
- 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.)
- Granted
Links
- 239000000758 substrate Substances 0.000 abstract 4
- 206010034972 Photosensitivity reaction Diseases 0.000 abstract 1
- 230000001427 coherent effect Effects 0.000 abstract 1
- 230000036211 photosensitivity Effects 0.000 abstract 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
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
- G02B6/02123—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating
- G02B6/02133—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating using beam interference
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1847—Manufacturing methods
- G02B5/1857—Manufacturing methods using exposure or etching means, e.g. holography, photolithography, exposure to electron or ion beams
-
- 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
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
- G02B6/0208—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response
- G02B6/02085—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response characterised by the grating profile, e.g. chirped, apodised, tilted, helical
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
Process for writing Bragg gratings, apparatus for using this process and Bragg grating devices obtained by this process.
According to the invention, a Bragg grating is written in a light guide (36) by transferring the interference pattern between two light beams (28, 30) with the same wavelength and coherent with each other but with an angular offset, directly into the substrate due to a photosensitivity phenomenon within the same said substrate, this interference pattern being transferred in the substrate in the form of a modulation of the refraction index of this substrate.
At least one of the said light beams is divided into at least two sub-beams offset in phase with respect to each other.
According to the invention, a Bragg grating is written in a light guide (36) by transferring the interference pattern between two light beams (28, 30) with the same wavelength and coherent with each other but with an angular offset, directly into the substrate due to a photosensitivity phenomenon within the same said substrate, this interference pattern being transferred in the substrate in the form of a modulation of the refraction index of this substrate.
At least one of the said light beams is divided into at least two sub-beams offset in phase with respect to each other.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9805959A FR2778750B1 (en) | 1998-05-12 | 1998-05-12 | METHOD FOR REGISTERING BRAGG NETWORKS, APPARATUS FOR CARRYING OUT SAID METHOD, AND BRAGG NETWORK DEVICE OBTAINED THEREBY |
FR98/05959 | 1998-05-12 | ||
PCT/FR1999/001119 WO1999059009A1 (en) | 1998-05-12 | 1999-05-11 | Method for forming bragg gratings, apparatus for implementing said method and devices with bragg gratings obtained with said method |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2331487A1 true CA2331487A1 (en) | 1999-11-18 |
CA2331487C CA2331487C (en) | 2007-09-25 |
Family
ID=9526254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002331487A Expired - Fee Related CA2331487C (en) | 1998-05-12 | 1999-05-11 | Process for writing bragg gratings, apparatus for the use of this process and bragg grating devices obtained by this process |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1078288B1 (en) |
CA (1) | CA2331487C (en) |
DE (1) | DE69936517D1 (en) |
FR (1) | FR2778750B1 (en) |
WO (1) | WO1999059009A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2813398B1 (en) * | 2000-08-30 | 2003-12-05 | France Telecom | PROCESS FOR THE FEEDING OF A BRAGG NETWORK |
CN106574995B (en) | 2014-07-11 | 2019-08-30 | 加拿大国家研究委员会 | Optical grating is formed with the device for providing adjustable interference figure |
CN105607432A (en) * | 2016-01-11 | 2016-05-25 | 上海理工大学 | Low linear density grating exposure system |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61156003A (en) * | 1984-12-27 | 1986-07-15 | Sharp Corp | Production of diffraction grating |
JPH0672962B2 (en) * | 1985-07-19 | 1994-09-14 | 株式会社日立製作所 | Method and apparatus for forming diffraction grating |
US4750801A (en) * | 1985-09-30 | 1988-06-14 | American Telephone And Telegraph Company, At&T Bell Laboratories | Optical waveguide resonator filters |
US5238531A (en) * | 1992-01-17 | 1993-08-24 | Hughes Aircraft Company | Apparatus and method for fabricating a chirped grating in a surface emitting distributed feedback semiconductor laser diode device |
US5363239A (en) * | 1992-12-23 | 1994-11-08 | At&T Bell Laboratories | Method for forming spatially-varying distributed Bragg reflectors in optical media |
DE69613999T2 (en) * | 1995-12-12 | 2002-04-04 | British Telecommunications P.L.C., London | PRODUCTION OF A CRUSH GRID |
US5629998A (en) * | 1996-01-29 | 1997-05-13 | Corning Incorporated | Method and apparatus for writing photosensitive grating using Lloyd's mirror |
DE69727667T2 (en) * | 1996-05-09 | 2004-12-30 | President And Fellows Of Harvard College, Cambridge | MANUFACTURE OF SMALL COILS AND TAPES AS A PHOTOMASK ON OPTICAL FAIRS FOR THE PRODUCTION OF FIBER EMITTERS, ELECTROMAGNETS AS MICRO-NMR COILS, MICRO-TRANSFORMERS AND INTRAVSCULAR STANTS |
-
1998
- 1998-05-12 FR FR9805959A patent/FR2778750B1/en not_active Expired - Fee Related
-
1999
- 1999-05-11 CA CA002331487A patent/CA2331487C/en not_active Expired - Fee Related
- 1999-05-11 DE DE69936517T patent/DE69936517D1/en not_active Expired - Lifetime
- 1999-05-11 EP EP99918048A patent/EP1078288B1/en not_active Expired - Lifetime
- 1999-05-11 WO PCT/FR1999/001119 patent/WO1999059009A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
WO1999059009A1 (en) | 1999-11-18 |
EP1078288A1 (en) | 2001-02-28 |
EP1078288B1 (en) | 2007-07-11 |
CA2331487C (en) | 2007-09-25 |
DE69936517D1 (en) | 2007-08-23 |
FR2778750A1 (en) | 1999-11-19 |
FR2778750B1 (en) | 2003-05-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |