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First demonstration of single-mode distributed feedback type-I GaSb cascade diode laser emitting near 2.9 μm

  • Mathieu Fradet
  • , Takashi Hosoda
  • , Clifford Frez
  • , Leon Shterengas
  • , Stanley Sander
  • , Siamak Forouhar
  • , Gregory Belenky

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

We demonstrate GaSb-based laterally-coupled distributed-feedback type-I cascade diode lasers emitting near 2.9 μm as potential sources for OH measurements. The laser heterostructures consist of two GaInAsSb quantum well stages in series separated by GaSb/AlSb/InAs tunnel junction and InAs/AlSb electron injectors. Single-mode emission is generated using second order lateral Bragg grating etched alongside narrow ridge waveguides. The lasers were fabricated into 2-mm-long devices, solder-mounted epi-up on copper submounts, and operate at room temperature. With an anti-reflection coating at the emission facet, the lasers exhibit a typical current threshold of 110 mA at 20 °C and emit more than 14 mW of output power. The Bragg wavelength temperature tuning rate was 0.29 nm/°C.

Original languageEnglish
Title of host publicationNovel In-Plane Semiconductor Lasers XV
EditorsAlexey A. Belyanin, Peter M. Smowton
PublisherSPIE
ISBN (Electronic)9781510600027
DOIs
StatePublished - 2016
EventNovel In-Plane Semiconductor Lasers XV - San Francisco, United States
Duration: Feb 15 2016Feb 18 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9767

Conference

ConferenceNovel In-Plane Semiconductor Lasers XV
Country/TerritoryUnited States
CitySan Francisco
Period02/15/1602/18/16

Keywords

  • Diode lasers
  • Distributed-feedback
  • GaSb
  • Laser sensors
  • Single frequency
  • Type-I

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