We report the observation of self-pumped phase conjugation by means of internal reflection in a photorefractive medium produced by a series of intense nanosecond pulses. Nanosecond pulses from a YAG laser ranging in intensity from 9 × 104 to 9 × 105 W/cm2 were used. The crystal was rhodium-doped strontium barium niobate. The conjugate signal began with the first pulse, and the time to reach 63% of its equilibrium value scaled as I−2. The equilibrium reflectivity was 29%. A similar cw experiment with the 514-nm line of an argon laser produced a response time that scaled as I−1.1.
© 1990 Optical Society of AmericaFull Article | PDF Article
Steven R. Montgomery, Jan Yarrison-Rice, Donald O. Pederson, Gregory J. Salamo, Mary J. Miller, William W. Clark, Gary L. Wood, Edward J. Sharp, and Ratnakar R. Neurgaonkar
J. Opt. Soc. Am. B 5(8) 1775-1782 (1988)
R. A. Vazquez, R. R. Neurgaonkar, and M. D. Ewbank
J. Opt. Soc. Am. B 9(8) 1416-1427 (1992)
Sze-Keung Kwong, Young-Hoon Chung, Mark Cronin-Golomb, and Amnon Yariv
Opt. Lett. 10(7) 359-361 (1985)