Patent · US Active

Separate confinement heterostructure with asymmetric structure and composition

US7903711B1 · kind B1 · utility

2Cited by

9References

17Claims

0Family size

Assignee

Coherent, Inc. · US

Inventors

Thomas C. Hasenberg · Campbell, US
Guoli Liu · Camarillo, US

Key dates

Filing date	Nov 13, 2009
Grant date	Mar 8, 2011
Priority date	—
Expiry date	Nov 13, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/3436
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A separate confinement heterostructure includes a quantum-well layer bounded by an n-side waveguide layer and a p-side waveguide layer. The waveguide layers guide a lasing mode of the heterostructure. The n-side waveguide layer is composed of indium gallium phosphide (InGaP) and the p-side layer is composed of aluminum gallium arsenide (AlGaAs). The heterostructure is configured such that more than 80% of the optical mode propagates in the n-side waveguide layer.

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