Room temperature operation of ultra-short quantum cascade lasers with deeply etched Bragg mirrors

S Hofling*, J Seufert, JP Reithmaier, A Forchel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Mid-infrared GaAs based bound-to-continuum quantum cascade microlasers with ridge waveguide geometry are fabricated by the monolithic integration of deeply etched semiconductor-air Bragg mirrors. Devices with ultra-short cavities of 50 and 150 pm can be operated near room temperature (260 K) or at room temperature (300 K), respectively. 50 pm-long devices show singlemode emission up to relatively high drive currents due to the large mode spacing of about 30 cm(-1) (340 nm).

Original languageEnglish
Pages (from-to)704-705
Number of pages2
JournalElectronics Letters
Volume41
Issue number12
DOIs
Publication statusPublished - 9 Jun 2005

Keywords

  • BOUND-TO-CONTINUUM
  • MICROCYLINDER LASERS
  • MU-M
  • MICROLASERS

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