Title: Single spatial mode output multi-mode interference laser diode with external cavity
Application Number: 200610149748 Application Date: 2006.11.20
Publication Number: 1967953 Publication Date: 2007.05.23
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01S5/00;H01S5/14;H01S5/20
Applicant(s) Name: JDS Uniphase Corp. Address:
Inventor(s) Name: Muendel Martin H.;Rossin Victor;Acklin Bruno
Attorney & Agent: zhengxiao yue
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.
Time: 6