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Enhanced terahertz-wave parametric generation and oscillation in lithium niobate waveguides at terahertz frequencies
A C Chiang1, T D Wang, Y Y Lin
1Institute of Photonics Technologies, Department of Electrical Engineering, National Tsinghua University, Hsinchu 300, Taiwan.
Optics Letters
|January 5, 2006
Abstract:
We observed parametric-generation efficiency of 1.61% from 1064 to 1071 nm and at 162 microm in a 0.5 mm thick, 45 mm long z-cut congruent lithium niobate waveguide with a pump energy of 2.2 mJ and a pump pulse width of 5.8 ns. We also measured an ultralow-threshold intensity of 70 MW/cm2 for a 1064 nm pumped parametric oscillator resonating at 1071 nm and emitting at 162 microm with a 1 mm thick, 45 mm long lithium niobate waveguide.
