Versatile method and system for single mode VCSELs
US6905900B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2000 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Aug 3, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/166
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system and method for providing a single mode VCSEL (vertical cavity surface emitting laser) component (100) is disclosed, comprising a semiconductor substrate (102) having a lower surface and an upper surface, a bottom electrical contact (104) disposed along the lower surface of the substrate, a lower mirror (106) formed of n-type material and disposed upon the upper surface of the substrate, an active region (108) having a plurality of quantum wells disposed upon the lower mirror portion, an upper mirror (110) formed from isotropic material and disposed upon the active region, an equipotential layer (112) disposed upon the upper mirror portion, a first upper electrical contact (120) disposed upon the equipotential layer, a second upper electrical contact (122) disposed upon the equipotential layer at a particular distance (124) from the first upper electrical contact, a first isolation region (126) disposed beneath the first upper contact and traversing the equipotential layer, the upper mirror, the active region, and the lower mirror, a second isolation region (128) disposed beneath the second upper contact and traversing the equipotential layer, the upper mirror, the active r…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.