We report the observation of high-intensity solitons in a bulk strontium barium niobate crystal. The solitons are observed by use of 8-ns optical pulses with optical intensities greater than 100 MW/cm<sup>2</sup>. Each soliton forms and attains its minimum width after roughly ten pulses and reaches e<sup>-1</sup> of the steady-state width after the first pulse. We find good agreement between experimental observations and theoretical predictions for the soliton existence curve.
© 1998 Oprical Society of America
Konstantin Kos, Gregory Salamo, and Mordechai Segev, "High-intensity nanosecond photorefractive spatial solitons," Opt. Lett. 23, 1001-1003 (1998)