Open AccessBackward frequency doubling of near infrared picosecond pulses
Author(s) -
Alessandro Busacca,
Salvatore Stivala,
Luciano Curcio,
Alessandro Tomasino,
Gaetano Assanto
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.007544
Subject(s) - optics , phase matching , poling , picosecond , second harmonic generation , duty cycle , lithium niobate , materials science , sum frequency generation , nonlinear optics , laser , quasi phase matching , high harmonic generation , infrared , phase (matter) , physics , optoelectronics , voltage , ferroelectricity , dielectric , quantum mechanics
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.