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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 4 — Feb. 13, 2012
  • pp: 3890–3897

Single mode quantum cascade lasers with shallow-etched distributed Bragg reflector

Peter Fuchs, Jochen Friedl, Sven Höfling, Johannes Koeth, Alfred Forchel, Lukas Worschech, and Martin Kamp  »View Author Affiliations

Optics Express, Vol. 20, Issue 4, pp. 3890-3897 (2012)

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We report the fabrication of single mode quantum cascade lasers using a shallow-etched distributed Bragg reflector as frequency selective element. Quasi-continuous single mode tuning over 15 cm−1 at room temperature and 25 cm−1 via temperature tuning at Peltier temperatures is demonstrated. The behavior of both electro-optic and spectral characteristics under variation of the segment currents is analyzed, showing a maximum peak output power at room temperature of 600 mW. Thermal crosstalk between the laser segments is investigated. The spectral resolution of a gas absorption experiment is determined to be better than 0.0078 cm−1.

© 2012 OSA

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.5960) Lasers and laser optics : Semiconductor lasers
(230.5590) Optical devices : Quantum-well, -wire and -dot devices
(300.1030) Spectroscopy : Absorption
(300.6360) Spectroscopy : Spectroscopy, laser

ToC Category:
Lasers and Laser Optics

Original Manuscript: November 28, 2011
Revised Manuscript: January 6, 2012
Manuscript Accepted: January 16, 2012
Published: February 1, 2012

Peter Fuchs, Jochen Friedl, Sven Höfling, Johannes Koeth, Alfred Forchel, Lukas Worschech, and Martin Kamp, "Single mode quantum cascade lasers with shallow-etched distributed Bragg reflector," Opt. Express 20, 3890-3897 (2012)

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