JPS552263A - Production of optical guide circuits - Google Patents
Production of optical guide circuitsInfo
- Publication number
- JPS552263A JPS552263A JP7503678A JP7503678A JPS552263A JP S552263 A JPS552263 A JP S552263A JP 7503678 A JP7503678 A JP 7503678A JP 7503678 A JP7503678 A JP 7503678A JP S552263 A JPS552263 A JP S552263A
- Authority
- JP
- Japan
- Prior art keywords
- glass layer
- glass
- refractive index
- layer
- optical guide
- 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
PURPOSE:To enable optical guide circuits of low losses to be formed by synthesizing glass layers at high temperatures to form glass for waveguides of low scattering losses then forming the waveguide circuit patterns of a rectangular section through reactive sputter etching. CONSTITUTION:The first glass layer 31 is formed by a chemical vapor growth process by maintaining substrate temperature at 200 deg.C to 1650 deg.C on a substrate 20 which is made of refractory material and has flat surfaces, after which the second glass layer 32 of a refractive index higher than this is formed. Next, the third glass layer 33 of a refractive index lower than the second glass layer 32 is formed. Part of the third layer glass 33 is etched away according to desired patterns. After the additives for increasing refractive indices are allowed to evaporate from the surface of the second glass layer 32 having been exposed by the etching, the etched surface is covered with a glass layer 36 of a refractive index lower than that of the second glass layer 32.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53075036A JPS5947281B2 (en) | 1978-06-20 | 1978-06-20 | Method of manufacturing optical waveguide circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53075036A JPS5947281B2 (en) | 1978-06-20 | 1978-06-20 | Method of manufacturing optical waveguide circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS552263A true JPS552263A (en) | 1980-01-09 |
JPS5947281B2 JPS5947281B2 (en) | 1984-11-17 |
Family
ID=13564561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53075036A Expired JPS5947281B2 (en) | 1978-06-20 | 1978-06-20 | Method of manufacturing optical waveguide circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5947281B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5760305A (en) * | 1980-09-30 | 1982-04-12 | Nippon Sheet Glass Co Ltd | Manufacture of bier optics |
JPS57114110A (en) * | 1981-01-06 | 1982-07-15 | Nippon Telegr & Teleph Corp <Ntt> | Production of optical waveguide circuit |
JPS6172206A (en) * | 1984-09-17 | 1986-04-14 | Fujikura Ltd | Substrate type waveguide and its production |
JPS6291434A (en) * | 1985-10-16 | 1987-04-25 | カ−ル・ツワイス・ステイフツング | Manufacture of plane-shaped optical waveguide |
JPS63124006A (en) * | 1986-11-14 | 1988-05-27 | Nippon Telegr & Teleph Corp <Ntt> | Embedded light guide and its manufacture |
JPH0233106A (en) * | 1988-07-22 | 1990-02-02 | Hitachi Cable Ltd | Production of light guide |
US4986995A (en) * | 1988-12-23 | 1991-01-22 | Ajinomoto Co., Inc. | Process for producing retort boiled rice |
-
1978
- 1978-06-20 JP JP53075036A patent/JPS5947281B2/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5760305A (en) * | 1980-09-30 | 1982-04-12 | Nippon Sheet Glass Co Ltd | Manufacture of bier optics |
JPS57114110A (en) * | 1981-01-06 | 1982-07-15 | Nippon Telegr & Teleph Corp <Ntt> | Production of optical waveguide circuit |
JPS6172206A (en) * | 1984-09-17 | 1986-04-14 | Fujikura Ltd | Substrate type waveguide and its production |
JPS6291434A (en) * | 1985-10-16 | 1987-04-25 | カ−ル・ツワイス・ステイフツング | Manufacture of plane-shaped optical waveguide |
JPS63124006A (en) * | 1986-11-14 | 1988-05-27 | Nippon Telegr & Teleph Corp <Ntt> | Embedded light guide and its manufacture |
JPH0233106A (en) * | 1988-07-22 | 1990-02-02 | Hitachi Cable Ltd | Production of light guide |
US4986995A (en) * | 1988-12-23 | 1991-01-22 | Ajinomoto Co., Inc. | Process for producing retort boiled rice |
Also Published As
Publication number | Publication date |
---|---|
JPS5947281B2 (en) | 1984-11-17 |
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