Cold-cavity measurement of excess optical loss in oxide-confined vertical cavity surface emitting lasers

Microcavity laser design and performance optimization requires a quantitative knowledge of the cavity optical losses. A generalized method using sub-threshold spectral measurements matched to model calculations is demonstrated to determine optical loss in microcavity lasers. Cold-cavity spectral characteristics are used to extract the size dependent optical loss for small diameter oxide-confined vertical cavity surface emitting lasers. For oxide aperture diameters less than 4 !m, the oxide scattering loss can be greater than 10 cm-1, similar to the typical values of free carrier absorption loss.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Fryslie, Stewart

Contributors dc:contributor

• Choquette, Kent D.

• vertical cavity surface emitting laser
• semiconductor laser
• optical loss
• microcavity laser
• laser

Statement dc:rights

• Copyright 2013 Stewart Fryslie

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/46646

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/46646