Paper
20 February 2014 Continuous-wave optical parametric source for terahertz waves tunable from 1 to 4.5 THz frequency
Jens Kießling, Karsten Buse, Konstantin L. Vodopyanov, Ingo Breunig
Author Affiliations +
Abstract
We demonstrate the continuous-wave operation of a cascade that has been successfully applied so far only for picosecond systems: A doubly-resonant optical-parametric oscillator (OPO) based on lithium niobate generates signal and idler waves close to degeneracy. Subsequently, these two light fields are converted to a terahertz wave via difference frequency mixing in an orientation-patterned gallium arsenide crystal placed inside the OPO cavity. Using this scheme, we achieved tunability from 1 to 4:5 THz frequency, a linewidth smaller than 10 MHz, and a Gaussian beam profile. The output power is of the order of tens of μW, with a scalability into the milliwatt regime.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jens Kießling, Karsten Buse, Konstantin L. Vodopyanov, and Ingo Breunig "Continuous-wave optical parametric source for terahertz waves tunable from 1 to 4.5 THz frequency", Proc. SPIE 8964, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIII, 896408 (20 February 2014); https://doi.org/10.1117/12.2041915
Lens.org Logo
CITATIONS
Cited by 1 patent.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Terahertz radiation

Crystals

Gallium arsenide

Optical parametric oscillators

Continuous wave operation

Mirrors

Sensors

Back to Top