T. T. Basiev, A. V. Fedin, A. V. Gavrilov, S. N. Smetanin, S. A. Kyalbieva, “Single-mode Nd:YAG laser with a self-pumped phase-conjugate loop cavity”, Kvantovaya Elektronika, 1999, Volume 27, Number 2,Pages <nobr>145

This article is cited in 6 papers

Control of laser radiation parameters

Single-mode Nd:YAG laser with a self-pumped phase-conjugate loop cavity

T. T. Basiev^a, A. V. Fedin^b, A. V. Gavrilov^b, S. N. Smetanin^b, S. A. Kyalbieva^b

^a Laser Materials and Technology Research Center, Prokhorov General Physics Institute, RAS, Moscow
^b Kovrov State Technological Academy, Vladimir region

Abstract: A repetitively pulsed Nd:YAG laser with a self-pumped phase-conjugate loop cavity is proposed. A Sagnac interferometer is used as the end reflector. Parametric feed-back is provided by a dynamic holographic gratings in the active elements and a passive LiF:F$^-_2$ laser Q-switch. It is shown that an additional amplifier and a half-wave plate inside the interferometer can increase significantly the laser efficiency. An average radiation power of 120 W, a peak power of a single pulse of 6.9 MW, an experimentally achieved laser efficiency of 2%, an angular divergence of 0.5 mrad, and a spatial brightness of 10$^{14}$ W cm$^{-2}$ sr$^{-1}$ are reported.

PACS: 42.55.Rz, 42.60.Da, 42.65.Hw

Received: 15.01.1999