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Optics Letters

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  • Vol. 36, Iss. 5 — Mar. 1, 2011
  • pp: 692–694

MEMS-based tunable terahertz wire-laser over 330  GHz

Qi Qin, John L. Reno, and Qing Hu  »View Author Affiliations


Optics Letters, Vol. 36, Issue 5, pp. 692-694 (2011)
http://dx.doi.org/10.1364/OL.36.000692


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Abstract

We demonstrate continuous tuning of a terahertz quantum cascade wire laser over a broad range of 330 GHz ( 8.6 % of the 3.85 THz center frequency) with single-mode operation. Tuning is achieved with a narrow laser ridge ( λ o / 8 ) and a moveable MEMS (microelectromechanical systems) side object (plunger) to manipulate the transverse optical mode. The frictionless MEMS plunger enables continuous and reversible tuning. We demonstrate 30 GHz redshift tuning using a silicon plunger and 300 GHz blueshift tuning using a metal plunger. The blueshift tuning range is limited by the bandwidth of the gain medium rather than the tuning mechanism.

© 2011 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3600) Lasers and laser optics : Lasers, tunable

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 13, 2010
Manuscript Accepted: January 3, 2011
Published: February 24, 2011

Citation
Qi Qin, John L. Reno, and Qing Hu, "MEMS-based tunable terahertz wire-laser over 330 GHz," Opt. Lett. 36, 692-694 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-5-692


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References

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