CA2316530A1 - Optical waveguide grating and production method therefor - Google Patents
Optical waveguide grating and production method therefor Download PDFInfo
- Publication number
- CA2316530A1 CA2316530A1 CA002316530A CA2316530A CA2316530A1 CA 2316530 A1 CA2316530 A1 CA 2316530A1 CA 002316530 A CA002316530 A CA 002316530A CA 2316530 A CA2316530 A CA 2316530A CA 2316530 A1 CA2316530 A1 CA 2316530A1
- Authority
- CA
- Canada
- Prior art keywords
- core
- optical waveguide
- cladding
- rejection
- grating
- 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
- 238000002840 optical waveguide grating Methods 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 abstract 4
- 238000005253 cladding Methods 0.000 abstract 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052796 boron Inorganic materials 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 229910052732 germanium Inorganic materials 0.000 abstract 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
Landscapes
- Optical Integrated Circuits (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
An optical waveguide grating with radiative mode-coupling properties, with exceptional stability and reliability as an optical component, wherein the central wavelength of the rejection band has a low temperature dependence, due to the use of silica glass doped with germanium and boron for the core.
The rejection bandwidth can be narrowed without increasing the grating length by forming the radiative mode-coupled optical waveguide grating in an optical waveguide wherein the mean relative refractive index difference of the core is greater than that of optical communication waveguides. The rejection can be increased by reducing the occurrence of cases wherein propagation modes of the core coupled to cladding modes once again couple to the core in planar optical waveguide gratings formed by making periodic changes in the waveguide structure along the direction of propagation of light in an optical waveguide having a cladding with a lower refractive index than the core surrounding the core, by making the thickness of the cladding at least thirteen times the thickness of the core.
The rejection bandwidth can be narrowed without increasing the grating length by forming the radiative mode-coupled optical waveguide grating in an optical waveguide wherein the mean relative refractive index difference of the core is greater than that of optical communication waveguides. The rejection can be increased by reducing the occurrence of cases wherein propagation modes of the core coupled to cladding modes once again couple to the core in planar optical waveguide gratings formed by making periodic changes in the waveguide structure along the direction of propagation of light in an optical waveguide having a cladding with a lower refractive index than the core surrounding the core, by making the thickness of the cladding at least thirteen times the thickness of the core.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8-084113 | 1996-04-05 | ||
| JP08411396A JP3380111B2 (en) | 1996-04-05 | 1996-04-05 | Optical waveguide grating |
| JP13926096A JP3369047B2 (en) | 1996-05-31 | 1996-05-31 | Manufacturing method of optical waveguide grating |
| JP8-139260 | 1996-05-31 | ||
| JP8-144639 | 1996-06-06 | ||
| JP8144639A JPH09325227A (en) | 1996-06-06 | 1996-06-06 | Optical waveguide grating |
| CA002201193A CA2201193C (en) | 1996-04-05 | 1997-03-27 | Optical waveguide grating and production method therefor |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002201193A Division CA2201193C (en) | 1996-04-05 | 1997-03-27 | Optical waveguide grating and production method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2316530A1 true CA2316530A1 (en) | 1997-10-05 |
| CA2316530C CA2316530C (en) | 2003-09-30 |
Family
ID=27427338
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002316530A Expired - Lifetime CA2316530C (en) | 1996-04-05 | 1997-03-27 | Optical waveguide grating and production method therefor |
| CA002316525A Abandoned CA2316525A1 (en) | 1996-04-05 | 1997-03-27 | Optical waveguide grating and production method therefor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002316525A Abandoned CA2316525A1 (en) | 1996-04-05 | 1997-03-27 | Optical waveguide grating and production method therefor |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA2316530C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941753A (en) * | 2018-01-10 | 2018-04-20 | 南昌大学 | Device and the application of solution refractive index are surveyed in a kind of polished end faces reflection using TFBG tail optical fibers |
| CN112630967B (en) * | 2020-12-23 | 2022-12-13 | 业成科技（成都）有限公司 | Optical waveguide module and electronic equipment |
-
1997
- 1997-03-27 CA CA002316530A patent/CA2316530C/en not_active Expired - Lifetime
- 1997-03-27 CA CA002316525A patent/CA2316525A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CA2316530C (en) | 2003-09-30 |
| CA2316525A1 (en) | 1997-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20170327 |