Room-temperature terahertz generation using vertical-external-cavity surface-emitting lasers

M. Wichmann, A. Chernikov, M. K. Shakfa, Maik A Scheller, Jerome V Moloney, Stephan W Koch, M. Koch

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Continuous wave (CW) terahertz (THz) sources are highly desirable for a plethora of applications ranging from spectroscopy [1] over quality inspection [2,3] of industrial goods to THz astronomy [4]. It is, however, still challenging to generate decent power levels from tunable room-temperature sources; in particular in the frequency window between 1 and 5 THz. Here, we present a compact, tunable room-temperature operating CW THz source capable of generating milliwatt power levels. The source is based on intracavity difference frequency generation (DFG) within a dual color vertical-external-cavity surface-emitting laser (VECSEL). For an efficient exploitation of the frequency-mixing scheme, a stable two-color operation of the laser is crucial. We additionally perform a systematic study of the temporal stability of the VECSEL emission via single-shot streak camera measurements. The experimental data is evaluated using quantitative statistical analysis schemes. Stable and unstable operation regimes are identified and the dependence on the intra-cavity power is investigated.

Original languageEnglish (US)
Title of host publication2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013
PublisherIEEE Computer Society
DOIs
StatePublished - 2013
Event2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013 - Munich, Germany
Duration: May 12 2013May 16 2013

Other

Other2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013
CountryGermany
CityMunich
Period5/12/135/16/13

Fingerprint

Terahertz waves
Surface emitting lasers
Color
Streak cameras
Astronomy
Statistical methods
Inspection
Spectroscopy
Temperature
Lasers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Wichmann, M., Chernikov, A., Shakfa, M. K., Scheller, M. A., Moloney, J. V., Koch, S. W., & Koch, M. (2013). Room-temperature terahertz generation using vertical-external-cavity surface-emitting lasers. In 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013 [6800793] IEEE Computer Society. https://doi.org/10.1109/CLEOE-IQEC.2013.6800793

Room-temperature terahertz generation using vertical-external-cavity surface-emitting lasers. / Wichmann, M.; Chernikov, A.; Shakfa, M. K.; Scheller, Maik A; Moloney, Jerome V; Koch, Stephan W; Koch, M.

2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013. IEEE Computer Society, 2013. 6800793.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wichmann, M, Chernikov, A, Shakfa, MK, Scheller, MA, Moloney, JV, Koch, SW & Koch, M 2013, Room-temperature terahertz generation using vertical-external-cavity surface-emitting lasers. in 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013., 6800793, IEEE Computer Society, 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013, Munich, Germany, 5/12/13. https://doi.org/10.1109/CLEOE-IQEC.2013.6800793
Wichmann M, Chernikov A, Shakfa MK, Scheller MA, Moloney JV, Koch SW et al. Room-temperature terahertz generation using vertical-external-cavity surface-emitting lasers. In 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013. IEEE Computer Society. 2013. 6800793 https://doi.org/10.1109/CLEOE-IQEC.2013.6800793
Wichmann, M. ; Chernikov, A. ; Shakfa, M. K. ; Scheller, Maik A ; Moloney, Jerome V ; Koch, Stephan W ; Koch, M. / Room-temperature terahertz generation using vertical-external-cavity surface-emitting lasers. 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013. IEEE Computer Society, 2013.
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