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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 11 — May. 23, 2011
  • pp: 10707–10713

Complex-coupled photonic crystal THz lasers with independent loss and refractive index modulation

Hua Zhang, Giacomo Scalari, Mattias Beck, Jérôme Faist, and Romuald Houdré  »View Author Affiliations

Optics Express, Vol. 19, Issue 11, pp. 10707-10713 (2011)

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Compared to near infra-red photonic crystal (PhC) band-edge lasers, achieving vertical emission with quantum cascade (QC) material operating in the THz range needs dedicated engineering because the TM polarized emission of QCLs favors in-plane emitting schemes and the currently used double plasmon waveguide, prevents vertical light extraction. We present an approach with independent refractive index and extraction losses modulation. The extraction losses are obtained with small extracting holes located at appropriate positions. The modal operation of the PhC is shown to critically depend on the external losses introduced. Very high surface emission power for optimum loss extractor design is achieved.

© 2011 OSA

OCIS Codes
(220.4000) Optical design and fabrication : Microstructure fabrication
(260.3090) Physical optics : Infrared, far
(050.5298) Diffraction and gratings : Photonic crystals
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 9, 2011
Revised Manuscript: May 13, 2011
Manuscript Accepted: May 13, 2011
Published: May 17, 2011

Hua Zhang, Giacomo Scalari, Mattias Beck, Jérôme Faist, and Romuald Houdré, "Complex-coupled photonic crystal THz lasers with independent loss and refractive index modulation," Opt. Express 19, 10707-10713 (2011)

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