Cold-cavity measurement of excess optical loss in oxide-confined vertical cavity surface emitting lasers
Fryslie, Stewart
Loading…
Permalink
https://hdl.handle.net/2142/46646
Description
Title
Cold-cavity measurement of excess optical loss in oxide-confined vertical cavity surface emitting lasers
Author(s)
Fryslie, Stewart
Issue Date
2014-01-16T17:57:22Z
Director of Research (if dissertation) or Advisor (if thesis)
Choquette, Kent D.
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
vertical cavity surface emitting laser
semiconductor laser
optical loss
microcavity laser
laser
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 !m, the oxide scattering loss can be greater than 10 cm-1, similar to the typical values of free carrier absorption loss.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.
