Two-wave mixing at λ = 1.06 μm in the saturable gain of a flash-lamp-pumped Nd:YAG amplifier was investigated, both experimentally and theoretically, by development of a transient analysis. Despite the local response of the inverted medium, it is shown that energy redistribution can occur, thus leading to the depletion of a low-intensity signal beam. Finally we measured a diffraction efficiency of 20% of the transmission-gain grating by diffracting a probe beam at λ = 1.06 μm under the Bragg condition.
© 1993 Optical Society of America
Original Manuscript: June 1, 1993
Published: October 1, 1993
A. Brignon and J.-P. Huignard, "Two-wave mixing in Nd:YAG by gain saturation," Opt. Lett. 18, 1639-1641 (1993)