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Multimodal spectral control of a quantum-dot diode laser for THz difference frequency generation

Leyman, R; Nikitichev, DI; Bazieva, N; Rafailov, EU; (2011) Multimodal spectral control of a quantum-dot diode laser for THz difference frequency generation. Applied Physics Letters , 99 (17) , Article 171107. 10.1063/1.3654154. Green open access

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Abstract

Generation of stable dual and/or multiple longitudinal modes emitted from a single quantum dot(QD)laser diode(LD) over a broad wavelength range by using volume Bragg gratings (VBG’s) in an external cavity setup is reported. The LD operates in both the ground and excited states and the gratings give a dual-mode separation around each emission peak of 5 nm, which is suitable as a continuous wave (CW) optical pump signal for a terahertz (THz) photomixer device. The setup also generates dual modes around both 1180 m and 1260 nm simultaneously, giving four simultaneous narrow linewidth modes comprising two simultaneous difference frequency pump signals.

Type: Article
Title: Multimodal spectral control of a quantum-dot diode laser for THz difference frequency generation
Open access status: An open access version is available from UCL Discovery
DOI: 10.1063/1.3654154
Publisher version: http://dx.doi.org/10.1063/1.3654154
Language: English
Additional information: Copyright 2011 AIP Publishing. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Leyman, R; Nikitichev, DI; Bazieva, N; Rafailov, EU; (2011) Multimodal spectral control of a quantum-dot diode laser for THz difference frequency generation. Applied Physics Letters, 99 (17), Article 171107, and may be found at http://dx.doi.org/10.1063/1.3654154.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/1462812
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