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

Stewart T.M. Fryslie, Dominic F. Siriani, Kent D. Choquette

Research output: Contribution to journalArticlepeer-review

Abstract

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 μm, the oxide scattering loss can be greater than 10 cm-1, similar to the typical values of free carrier absorption loss.

Original languageEnglish (US)
Article number101103
JournalApplied Physics Letters
Volume104
Issue number10
DOIs
StatePublished - Mar 10 2014

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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