Patent · US Expired

Lateral confinement laser

US6075802A · kind A · utility

9Cited by

9References

2Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Bjorn Stolz · Stockholm, SE
Ulf Ohlander · Bromma, SE

Key dates

Filing date	Mar 12, 1998
Grant date	Jun 13, 2000
Priority date	—
Expiry date	Mar 12, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/2275
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In a semiconductor laser comprising a mesa structure (11), the lateral current distribution in the mesa structure (11) is controlled in order to reduce the current at the mesa walls near the active lasing layer (15) by locating, in the mesa structure, a current blocking layer (13) having an aperture (14) of less width than the mesa structure (11) and being centred in relation to the mesa structure (11).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.