Quasi-phase-matched second-harmonic generation of 532 nm radiation in 25 degrees -rotated, x-cut, near-stoichiometric, lithium tantalate fabricated by vapor transport equilibration

D S Hum; R K Route; M M Fejer

doi:10.1364/ol.32.000961

Quasi-phase-matched second-harmonic generation of 532 nm radiation in 25 degrees -rotated, x-cut, near-stoichiometric, lithium tantalate fabricated by vapor transport equilibration

Opt Lett. 2007 Apr 15;32(8):961-3. doi: 10.1364/ol.32.000961.

Authors

D S Hum¹, R K Route, M M Fejer

Affiliation

¹ E. L. Ginzton Laboratory, Stanford University, Stanford, CA 94305, USA. dhum@stanford.edu

PMID: 17375168
DOI: 10.1364/ol.32.000961

Abstract

Quasi-phase-matched second-harmonic generation of 532 nm radiation in 25 degrees -rotated, x-cut, near-stoichiometric lithium tantalate has been performed. Using a face-normal topology for frequency conversion applications allows scalable surface area to avoid surface and volume damage in high-power interactions. First-order, quasi-phase-matched second-harmonic generation was achieved using near-stoichiometric lithium tantalate fabricated by vapor transport equilibration. These crystals supported 1 J of 1064 nm radiation and generated 21 mJ of 532 nm radiation from a 7 ns, Q-switched Nd:YAG laser within a factor of 4.2 of expectation.