JPS57105701A - Production of optical parts - Google Patents
Production of optical partsInfo
- Publication number
- JPS57105701A JPS57105701A JP55183421A JP18342180A JPS57105701A JP S57105701 A JPS57105701 A JP S57105701A JP 55183421 A JP55183421 A JP 55183421A JP 18342180 A JP18342180 A JP 18342180A JP S57105701 A JPS57105701 A JP S57105701A
- Authority
- JP
- Japan
- Prior art keywords
- optical crystal
- external diffusion
- holder
- diffusion material
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Surface Treatment Of Optical Elements (AREA)
Abstract
PURPOSE:To prevent the change of properties of an optical crystal and to make the manufacture of optical devices of high performance possible by bringing the working surface of an optical crystal body in tight contact with a flat plate which hampers the percolation of the external diffusion material in the optical crystal and applying a heat treatment thereto. CONSTITUTION:Ti for formation of waveguides is deposited by a lift-off method on a thin plate 4 of LiNbO3 disposed on a quartz holder 3 in a diffusion furnace consisting of a quartz tube 1 heated to 1,000 deg.C by an electric furnace 2. An external diffusion material (Li2O) is beforehand vapor-deposited on the holder 3 and when it is heated in tight contact with the surface of a sample 4, the external diffusion material evaporated from the holder 3 side fills the microclearances and this expedites the external diffusion stop of the sample 4. Thereby, the change in the properties of an optical crystal 4 is prevented and the manufacture of the high-performance optical devices is made possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55183421A JPS57105701A (en) | 1980-12-24 | 1980-12-24 | Production of optical parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55183421A JPS57105701A (en) | 1980-12-24 | 1980-12-24 | Production of optical parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57105701A true JPS57105701A (en) | 1982-07-01 |
Family
ID=16135479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55183421A Pending JPS57105701A (en) | 1980-12-24 | 1980-12-24 | Production of optical parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57105701A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62182120A (en) * | 1986-02-03 | 1987-08-10 | Olympus Optical Co Ltd | Electric furnace in glass forming apparatus |
-
1980
- 1980-12-24 JP JP55183421A patent/JPS57105701A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62182120A (en) * | 1986-02-03 | 1987-08-10 | Olympus Optical Co Ltd | Electric furnace in glass forming apparatus |
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