ES2074937A2 - Procedure for the manufacture of optical wave guides for the ordinary refractive index of LiNbO3. - Google Patents
Procedure for the manufacture of optical wave guides for the ordinary refractive index of LiNbO3.Info
- Publication number
- ES2074937A2 ES2074937A2 ES09300551A ES9300551A ES2074937A2 ES 2074937 A2 ES2074937 A2 ES 2074937A2 ES 09300551 A ES09300551 A ES 09300551A ES 9300551 A ES9300551 A ES 9300551A ES 2074937 A2 ES2074937 A2 ES 2074937A2
- Authority
- ES
- Spain
- Prior art keywords
- approximately
- procedure
- manufacture
- refractive index
- ordinary
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 230000003287 optical effect Effects 0.000 title abstract 2
- 229910003327 LiNbO3 Inorganic materials 0.000 title 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract 2
- 229910001416 lithium ion Inorganic materials 0.000 abstract 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 1
- 238000005342 ion exchange Methods 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
Landscapes
- Optical Integrated Circuits (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Procedure for the manufacture of optical wave guides for the ordinary refractive index of Lithium Niobate by means of a double ion exchange. A layer several microns thick is generated with an initial deep proton exchange, from which a certain fraction of the lithium ions has been extracted from the material, causing a reduction in the ordinary index of approximately [delta]n [approximately equals] 0.04 (Fig. 1). With a second, less deep exchange than the first, in a lithium-rich solution, the lithium ions are re-introduced and the ordinary index approximately recovers its initial value in a layer less than the first. This last layer together with the rest of the previous layer which forms the actual substrate, constitutes the wave guide (Fig. 2). The wave guide finally has a jump in the ordinary index of [delta]n [approximately equals] 0.03 for [lambda] = 0.6328 [mu]m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9300551A ES2074937B1 (en) | 1993-03-16 | 1993-03-16 | PROCEDURE FOR THE MANUFACTURE OF OPTICAL WAVE GUIDES FOR THE ORDINARY REFRACTION INDEX OF LINBO3. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9300551A ES2074937B1 (en) | 1993-03-16 | 1993-03-16 | PROCEDURE FOR THE MANUFACTURE OF OPTICAL WAVE GUIDES FOR THE ORDINARY REFRACTION INDEX OF LINBO3. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ES2074937A2 true ES2074937A2 (en) | 1995-09-16 |
| ES2074937R ES2074937R (en) | 1997-06-16 |
| ES2074937B1 ES2074937B1 (en) | 1998-02-16 |
Family
ID=8281153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES9300551A Expired - Fee Related ES2074937B1 (en) | 1993-03-16 | 1993-03-16 | PROCEDURE FOR THE MANUFACTURE OF OPTICAL WAVE GUIDES FOR THE ORDINARY REFRACTION INDEX OF LINBO3. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2074937B1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4701008A (en) * | 1984-08-10 | 1987-10-20 | Motorola, Inc. | Optical waveguide including superstrate of niobium or silicon oxynitride and method of making same |
| GB2191304A (en) * | 1986-06-03 | 1987-12-09 | Stc Plc | Integrated optical channel waveguide |
| GB2215855A (en) * | 1988-03-22 | 1989-09-27 | Plessey Co Plc | Manufacture of an optical waveguide using ion exchange |
| EP0415386A2 (en) * | 1989-08-30 | 1991-03-06 | Nec Corporation | Optical waveguide circuit with intersections |
-
1993
- 1993-03-16 ES ES9300551A patent/ES2074937B1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4701008A (en) * | 1984-08-10 | 1987-10-20 | Motorola, Inc. | Optical waveguide including superstrate of niobium or silicon oxynitride and method of making same |
| GB2191304A (en) * | 1986-06-03 | 1987-12-09 | Stc Plc | Integrated optical channel waveguide |
| GB2215855A (en) * | 1988-03-22 | 1989-09-27 | Plessey Co Plc | Manufacture of an optical waveguide using ion exchange |
| EP0415386A2 (en) * | 1989-08-30 | 1991-03-06 | Nec Corporation | Optical waveguide circuit with intersections |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2074937B1 (en) | 1998-02-16 |
| ES2074937R (en) | 1997-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EC2A | Search report published |
Date of ref document: 19950916 Kind code of ref document: R Effective date: 19950916 |
|
| FD2A | Announcement of lapse in spain |
Effective date: 20141120 |