Monday, January 11, 2016
Abstract-Green laser induced terahertz tuning range expanding in KTiOPO4 terahertz parametric oscillator
532 nm green laser is utilized to achieve terahertz tuning range expanding in KTiOPO terahertz parametric With the analysis of the stimulated an expanded tunability of the KTiOPO terahertz parametric can be realized. A wide terahertz output tuning range from 5.7 to 6.1 THz, from 7.4 to 7.8 THz, from 11.5 to 11.8 THz, and from 13.3 to 13.5 THz was demonstrated in our experiment, and the result well matched the analysis. The maximum terahertz output was 1.61 J under the pump of 140 mJ, corresponding to the maximum THz conversion efficiency of 1.3 × 10−5, and the threshold pump is about 30 mJ.