Terahertz quantum cascade lasers with >1 W output powers

Lianhe Li; Li Chen; Jingxuan Zhu; J. Freeman; P. Dean; A. Valavanis; A.G. Davies; E.H. Linfield

Terahertz quantum cascade lasers with >1 W output powers

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Author(s): Lianhe Li ¹ ; Li Chen ¹ ; Jingxuan Zhu ¹ ; J. Freeman ¹ ; P. Dean ¹ ; A. Valavanis ¹ ; A.G. Davies ¹ ; E.H. Linfield ¹
- Affiliations: 1: School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, United Kingdom
Source: Volume 50, Issue 4, 13 February 2014, p. 309 – 311
DOI: 10.1049/el.2013.4035 , Print ISSN 0013-5194, Online ISSN 1350-911X

This is an open access article published by the IET under the Creative Commons Attribution License
(http://creativecommons.org/licenses/by/3.0/)

Received 07/12/2013, Published

Errata or comment

Terahertz (THz) frequency quantum cascade lasers emitting peak powers of >1 W from a single facet in the pulsed mode are demonstrated. The active region is based on a bound-to-continuum transition with a one-well injector, and is embedded into a surface-plasmon waveguide. The lasers emit at a frequency of ∼3.4 THz and have a maximum operating temperature of 123 K. The maximum measured emitted powers are ∼1.01 W at 10 K and ∼420 mW at 77 K, with no correction made to allow for the optical collection efficiency of the apparatus.

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Terahertz quantum cascade lasers with >1 W output powers

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