We report on backward second-harmonic generation using ps laser pulses in congruent lithium niobate with 3.2 µm periodic poling. Three resonant peaks were measured between 1530 and 1730 nm, corresponding to 16th, 17th and 18th quasi-phase-matching orders in the backward configuration, with a conversion efficiency of 4.75 x 10-5%/W for the 16th order. We could also discriminate the contributions from inverted domains randomized in duty-cycle.
Busacca, A., Stivala, S., Curcio, L., Tomasino, A., Assanto, G. (2014). Backward frequency doubling of near infrared picosecond pulses. OPTICS EXPRESS, 22(7), 7544-7549 [10.1364/OE.22.007544].
Backward frequency doubling of near infrared picosecond pulses
BUSACCA, Alessandro;STIVALA, Salvatore;CURCIO, Luciano;TOMASINO, Alessandro;
2014-01-01
Abstract
We report on backward second-harmonic generation using ps laser pulses in congruent lithium niobate with 3.2 µm periodic poling. Three resonant peaks were measured between 1530 and 1730 nm, corresponding to 16th, 17th and 18th quasi-phase-matching orders in the backward configuration, with a conversion efficiency of 4.75 x 10-5%/W for the 16th order. We could also discriminate the contributions from inverted domains randomized in duty-cycle.
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