Title

Continuous-Wave Optical Parametric Source For Terahertz Waves Tunable From 1 To 4.5 Thz Frequency

Keywords

Nonlinear optics; Optical parametric oscillators; Terahertz waves

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 SPIE.

Publication Date

3-17-2014

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

8964

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.2041915

Socpus ID

84896789781 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84896789781

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