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Index-guided operation in narrow stripe InGaAs-GaAs strained-layer quantum well heterostructure lasers by MeV oxygen implantation

Journal Article · · Applied Physics Letters; (United States)
DOI:https://doi.org/10.1063/1.105009· OSTI ID:5647240
; ; ; ; ; ;  [1];  [2]
  1. Univ. of Illinois, Urbana, IL (United States)
  2. Sandia National Labs., Albuquerque, NM (United States)
Stable index-guided operation of variable stripe strained-layer InGaAs-GaAs-AlGaAs lasers achieved by MeV oxygen implantation-induced disorder of the active region is demonstrated. Well-behaved near- and far-field patterns for lasers implanted with 5 [times] 10[sup 16] cm[sup [minus]2] and 1 [times] 10[sup 17] cm[sup [minus]2] oxygen are observed to be stable with increasing drive current. Comparison with unimplanted, oxide-defined stripe lasers fabricated from the same wafer indicates a dramatic improvement in emission characteristics as a result of the presence of a lateral real-index waveguide in the oxygen-disordered regions which is stronger than the carrier-induced antiguide present in unimplanted InGaAs-GaAs strained-layer lasers.
DOE Contract Number:
AC02-76ER01198; AC04-76DP00789
OSTI ID:
5647240
Journal Information:
Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 58:19; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English