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Proceedings Paper

Terahertz generation by difference frequency conversion of two single-frequency VECSELs in an external resonance cavity
Author(s): Maik Scheller; Justin R. Paul; Alexandre Laurain; Abram Young; Stephan W. Koch; Jerome V. Moloney
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Paper Abstract

We demonstrate a continuous wave, single frequency terahertz (THz) source based on parametric difference frequency generation within a nonlinear crystal located in an optical enhancement cavity. Two single-frequency VECSELs with emission wavelengths spaced by 6.8 nm are phase locked to the external cavity and are used as pump sources for the nonlinear down conversion. The emitting THz radiation is centered at 1.9 THz and has a linewidth of less than 100 kHz. The output power of the source exceeds 100 μW. We show that the THz source can be used as local oscillator to drive a receiver used in astronomy applications.

Paper Details

Date Published: 3 March 2014
PDF: 6 pages
Proc. SPIE 8966, Vertical External Cavity Surface Emitting Lasers (VECSELs) IV, 89660E (3 March 2014); doi: 10.1117/12.2040399
Show Author Affiliations
Maik Scheller, Beam Technologies LLC (United States)
College of Optical Sciences, The Univ. of Arizona (United States)
Justin R. Paul, Beam Technologies LLC (United States)
College of Optical Sciences, The Univ. of Arizona (United States)
Alexandre Laurain, College of Optical Sciences, The Univ. of Arizona (United States)
Abram Young, TeraVision Inc. (United States)
Steward Observatory, Univ. of Arizona (United States)
Stephan W. Koch, Beam Technologies LLC (United States)
Philipps-Univ. Marburg (Germany)
Jerome V. Moloney, Beam Technologies LLC (United States)
College of Optical Sciences, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 8966:
Vertical External Cavity Surface Emitting Lasers (VECSELs) IV
Jerome V. Moloney, Editor(s)

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