JPS6449003A - Light guide - Google Patents
Light guideInfo
- Publication number
- JPS6449003A JPS6449003A JP20575787A JP20575787A JPS6449003A JP S6449003 A JPS6449003 A JP S6449003A JP 20575787 A JP20575787 A JP 20575787A JP 20575787 A JP20575787 A JP 20575787A JP S6449003 A JPS6449003 A JP S6449003A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- light guide
- light
- guided
- superlattice layer
- 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
Landscapes
- Optical Integrated Circuits (AREA)
- Semiconductor Lasers (AREA)
Abstract
PURPOSE:To enable the formation of light guides on a wafer with high accuracy without forming ruggedness thereon by providing a superlattice layer to a region adjacent to a photoconductive layer and disordering a part of the superlattice layer to form a light guide layer. CONSTITUTION:This light guide is constituted by providing the superlattice layer 4 designed in such a manner that the band gap energy thereof is smaller than the band gap energy of the photoconductive layer 2 via a thin clad layer 3 on said photoconductive layer and disordering the part of the superlattice layer 4 adjacent to the region where light is guided by a impurity diffusing or laser annealing method. The superlattice layer is so designated as to absorb the guided light in the superlattice layer region and not to absorb the guided layer in the disordered region 6 and, therefore, the refractive index distribution of a projecting type is formed and the light is guided. The light guide sized <=2mum is thereby easily formed and the light guide which can be formed in the completely flat state of the wafer surface is obtd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20575787A JPS6449003A (en) | 1987-08-19 | 1987-08-19 | Light guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20575787A JPS6449003A (en) | 1987-08-19 | 1987-08-19 | Light guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6449003A true JPS6449003A (en) | 1989-02-23 |
Family
ID=16512158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20575787A Pending JPS6449003A (en) | 1987-08-19 | 1987-08-19 | Light guide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6449003A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02205804A (en) * | 1989-02-06 | 1990-08-15 | Nippon Telegr & Teleph Corp <Ntt> | Semiconductor light guide |
| JPH0334485A (en) * | 1989-06-30 | 1991-02-14 | Nippon Telegr & Teleph Corp <Ntt> | Semiconductor laser and manufacture thereof |
| JP2001111102A (en) * | 1999-10-04 | 2001-04-20 | Oki Electric Ind Co Ltd | Rear end face reflectivity control type end face light emitting semiconductor element |
-
1987
- 1987-08-19 JP JP20575787A patent/JPS6449003A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02205804A (en) * | 1989-02-06 | 1990-08-15 | Nippon Telegr & Teleph Corp <Ntt> | Semiconductor light guide |
| JPH0334485A (en) * | 1989-06-30 | 1991-02-14 | Nippon Telegr & Teleph Corp <Ntt> | Semiconductor laser and manufacture thereof |
| JP2001111102A (en) * | 1999-10-04 | 2001-04-20 | Oki Electric Ind Co Ltd | Rear end face reflectivity control type end face light emitting semiconductor element |
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