Low-threshold, narrow-line THz-wave parametric oscillator with an intra-cavity grazing-incidence grating

Optics Express
T D WangY C Huang

Abstract

We report a low-threshold, narrow-line THz-wave parametric oscillator with an intra-cavity grazing-incidence grating and a 1-mm thick, 45-mm long lithium-niobate planar waveguide. When pumped by an actively Q-switched Nd:YAG laser, the threshold energy and intensity of the parametric oscillator were about 2.2 mJ and 70 MW/cm(2), respectively. The linewidths of the output THz wave were 12 and 134 GHz with and without the intra-cavity grating, respectively.

References

Jun 15, 1997·Optics Letters·D M MittlemanM C Nuss
Oct 6, 2003·Optics Express·Kodo KawaseHiroyuki Inoue
Feb 20, 2006·Optics Express·T EdwardsP Browne
Jun 15, 1991·Optics Letters·K C Harvey, C J Myatt

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Citations

Jul 1, 2014·Optics Letters·Weitao WangQingming Lu

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