CA2251754A1 - Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit - Google Patents
Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuitInfo
- Publication number
- CA2251754A1 CA2251754A1 CA002251754A CA2251754A CA2251754A1 CA 2251754 A1 CA2251754 A1 CA 2251754A1 CA 002251754 A CA002251754 A CA 002251754A CA 2251754 A CA2251754 A CA 2251754A CA 2251754 A1 CA2251754 A1 CA 2251754A1
- Authority
- CA
- Canada
- Prior art keywords
- optical waveguide
- waveguide
- waveguide circuit
- circuit
- manufacturing
- 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
Abstract
An optical waveguide circuit includes a plurality of waveguides with different lengths. Grooves (12) are formed in the waveguide by removing the upper cladding and the core of the waveguide (4) or by removing the upper cladding, the core and the lower cladding of the waveguide (4), and filled with a material (10) which have a refractive index temperature coefficient whose sign is different from the temperature coefficient of the effective refractive index of the waveguide.
The difference between the lengths of the removed parts of the adjacent waveguides is proportional to the difference between the lengths of the remaining parts of the adjacent waveguides.
The difference between the lengths of the removed parts of the adjacent waveguides is proportional to the difference between the lengths of the remaining parts of the adjacent waveguides.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9-030251 | 1997-02-14 | ||
JP3025197 | 1997-02-14 | ||
JP14023197 | 1997-05-29 | ||
JP9-140231 | 1997-05-29 | ||
PCT/JP1998/000626 WO1998036299A1 (en) | 1997-02-14 | 1998-02-16 | Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2251754A1 true CA2251754A1 (en) | 1998-08-20 |
CA2251754C CA2251754C (en) | 2006-04-04 |
Family
ID=36143372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002251754A Expired - Lifetime CA2251754C (en) | 1997-02-14 | 1998-02-16 | Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2251754C (en) |
-
1998
- 1998-02-16 CA CA002251754A patent/CA2251754C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2251754C (en) | 2006-04-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20180216 |