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55% conversion efficiency to green in bulk quasi-phase-matching lithium niobate

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4 Author(s)
J. Webjorn ; Optoelectron. Res. Centre, Southampton Univ., UK ; V. Pruneri ; P. St. J. Russell ; D. C. Hanna

High voltage and liquid electrodes were used for periodic poling of lithium niobate. A sample with a period of 6.80 μm was used for first-order frequency doubling of 1064 nm Q-switched Nd:YAG light with an average power conversion of 55%, implying greater than 90% power conversion at the peak of the pulse. The effective nonlinear coefficient for both Q-switched and continuous-wave measurements was ~15 pm/V

Published in:

Electronics Letters  (Volume:31 ,  Issue: 8 )