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Title: Modal analysis of a small surface emitting laser with a selectively oxidized waveguide

Abstract

We describe studies of an index-guided {similar_to}4{times}3 {mu}m{sup 2} vertical cavity surface emitting laser with a cw, room temperature 133 {mu}A threshold current and 53% slope efficiency fabricated using selective wet thermal oxidation to provide optical and electrical confinement. While the device operates strictly single mode, a large number of transverse modes are evident in the subthreshold luminescence observed in both vertical and lateral directions. Despite the lumped nature of the index region, the transverse mode wavelengths agree very well with those predicted for a conventional distributed waveguide structure. Waveguide dimensions and an effective index step of 2% between the active and cladding region are determined by fitting the modal data.

Authors:
; ; ;  [1]
  1. Sandia National Laboratories, Photonics Research Department 1312, MS 0603, P. O. Box 5800, Albuquerque, New Mexico 87185-0603 (United States)
Publication Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
45962
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 66; Journal Issue: 20; Other Information: PBD: 15 May 1995
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; SEMICONDUCTOR LASERS; OPERATION; GALLIUM ARSENIDES; ALUMINIUM ARSENIDES; HETEROJUNCTIONS; LASER CAVITIES; INDIUM ARSENIDES; OXIDATION; CONFINEMENT; EFFICIENCY; THRESHOLD CURRENT; DESIGN; FABRICATION

Citation Formats

Lear, K L, Choquette, K D, Schneider, Jr, R P, and Kilcoyne, S P. Modal analysis of a small surface emitting laser with a selectively oxidized waveguide. United States: N. p., 1995. Web. doi:10.1063/1.113102.
Lear, K L, Choquette, K D, Schneider, Jr, R P, & Kilcoyne, S P. Modal analysis of a small surface emitting laser with a selectively oxidized waveguide. United States. https://doi.org/10.1063/1.113102
Lear, K L, Choquette, K D, Schneider, Jr, R P, and Kilcoyne, S P. 1995. "Modal analysis of a small surface emitting laser with a selectively oxidized waveguide". United States. https://doi.org/10.1063/1.113102.
@article{osti_45962,
title = {Modal analysis of a small surface emitting laser with a selectively oxidized waveguide},
author = {Lear, K L and Choquette, K D and Schneider, Jr, R P and Kilcoyne, S P},
abstractNote = {We describe studies of an index-guided {similar_to}4{times}3 {mu}m{sup 2} vertical cavity surface emitting laser with a cw, room temperature 133 {mu}A threshold current and 53% slope efficiency fabricated using selective wet thermal oxidation to provide optical and electrical confinement. While the device operates strictly single mode, a large number of transverse modes are evident in the subthreshold luminescence observed in both vertical and lateral directions. Despite the lumped nature of the index region, the transverse mode wavelengths agree very well with those predicted for a conventional distributed waveguide structure. Waveguide dimensions and an effective index step of 2% between the active and cladding region are determined by fitting the modal data.},
doi = {10.1063/1.113102},
url = {https://www.osti.gov/biblio/45962}, journal = {Applied Physics Letters},
number = 20,
volume = 66,
place = {United States},
year = {Mon May 15 00:00:00 EDT 1995},
month = {Mon May 15 00:00:00 EDT 1995}
}