Vertical cavity surface emitting laser, optical transmitter-receiver module using the laser, and parallel processing system using the laser
US5912913A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1996 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Dec 19, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/176
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a vertical cavity surface emitting laser providing mirrors at least one of which has a high reflectivity to be obtained with a small number of pairs each comprising a semiconductor low-refractivity layer and a semiconductor high-refractivity layer, (1) in which GaAs is used for a substrate and Al, In and P are used as main elements for making the low-refractivity layers lattice-matching the GaAs substrate; (2) in which Ga, In, N and As are used as main elements of the high-refractivity layers; (3) in which GaAs is used for a substrate, Ga, In, N and As are used as main elements for making an active layer and the mirrors lattice-match the GaAs substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.