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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 15 — Jul. 25, 2005
  • pp: 5890–5896

Terahertz quantum cascade laser as local oscillator in a heterodyne receiver

H.-W. Hübers, S. G. Pavlov, A. D. Semenov, R. Köhler, L. Mahler, A. Tredicucci, H. E. Beere, D. A. Ritchie, and E. H. Linfield  »View Author Affiliations


Optics Express, Vol. 13, Issue 15, pp. 5890-5896 (2005)
http://dx.doi.org/10.1364/OPEX.13.005890


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Abstract

Terahertz quantum cascade lasers have been investigated with respect to their performance as a local oscillator in a heterodyne receiver. The beam profile has been measured and transformed in to a close to Gaussian profile resulting in a good matching between the field patterns of the quantum cascade laser and the antenna of a superconducting hot electron bolometric mixer. Noise temperature measurements with the hot electron bolometer and a 2.5 THz quantum cascade laser yielded the same result as with a gas laser as local oscillator.

© 2005 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3300) Lasers and laser optics : Laser beam shaping
(140.5960) Lasers and laser optics : Semiconductor lasers
(300.6310) Spectroscopy : Spectroscopy, heterodyne

ToC Category:
Research Papers

History
Original Manuscript: June 24, 2005
Revised Manuscript: July 20, 2005
Published: July 25, 2005

Citation
Heinz-Wilhelm Hübers, S. Pavlov, A. Semenov, R. Köhler, L. Mahler, A. Tredicucci, H. Beere, D. Ritchie, and E. Linfield, "Terahertz quantum cascade laser as local oscillator in a heterodyne receiver," Opt. Express 13, 5890-5896 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-15-5890


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