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Proceedings Paper

Terahertz generation from quasi-phase matched gallium arsenide using a type II ring cavity optical parametric oscillator
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Paper Abstract

sonant cavity enhancement results in substantial improvement in the efficiency of photonic THz-wave generation via difference frequency generation (DFG). A nearly degenerate optical parametric oscillator (OPO) was pumped by 6 ps pulses at 1064 nm, producing signal and idler pulses with average total power in excess of 80 W. By placing a sample of quasi-phasematched gallium arsenide (QPM-GaAs) at a focus of a ring cavity OPO, multicycle, narrowband THz radiation was produced, with average powers in excess of 100 μW and peak powers exceeding 150 mW. The dependence of the THz power on pump power shows no signs of saturation, so with higher power pump lasers, mW levels of average THz should be obtainable.

Paper Details

Date Published: 1 March 2012
PDF: 9 pages
Proc. SPIE 8261, Terahertz Technology and Applications V, 82610V (1 March 2012); doi: 10.1117/12.909529
Show Author Affiliations
Patrick F. Tekavec, Microtech Instruments, Inc. (United States)
Walter C. Hurlbut, Microtech Instruments, Inc. (United States)
Vladimir G. Kozlov, Microtech Instruments, Inc. (United States)
Konstantin Vodopyanov, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 8261:
Terahertz Technology and Applications V
Laurence P. Sadwick; Créidhe M. O'Sullivan, Editor(s)

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