Patent · US Active

Single spatial mode output multi-mode interference laser diode with external cavity

US7366210B2 · kind B2 · utility

1Cited by

3References

17Claims

0Family size

Assignee

JDS Uniphase Corporation · US

Inventors

Martin H. Muendel · Oakland, US
Victor Rossin · Milpitas, US
Bruno Acklin · Regensburg, DE

Key dates

Filing date	Nov 15, 2006
Grant date	Apr 29, 2008
Priority date	—
Expiry date	Nov 15, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/4087
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to a conventional broad-area laser having a single-mode output through the phenomenon of multimode interference (MMI) in step-index waveguides. Another aspect of the present invention relates to a very robust multi-mode compound cavity laser design that is fully defined by the geometry and the refractive index profile of the MMI region, which is quite insensitive to slight macro-scale refractive index variations due to manufacturing variation or temperature. As the self-imaging position shifts linearly in the refractive index, the confocal beam parameter can be made relatively long.

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