We report measurements on spatial and temporal properties of a cw phase-conjugate resonator (PCR) based on the photorefractive crystal BaTiO3 and pumped with millwatt power levels from a He–Ne or a Kr+-ion laser. In the absence of an intracavity aperture, the output beam is observed to be elongated in the direction of the crystal c axis by means of preferential self-defocusing of the beam by the highly anisotropic photorefractive effect in BaTiO3. When the coherence length of the pump laser is much smaller than the round-trip distance in the PCR, the time constants for buildup and decay of the PCR power are found to be much larger than those of the photorefractive response.
© 1982 Optical Society of AmericaFull Article | PDF Article
More Like This
Opt. Lett. 7(10) 486-488 (1982)
Changxi Yang, Katuo Seta, and Yong Zhu
Appl. Opt. 37(2) 352-360 (1998)
M. B. Klein, G. J. Dunning, G. C. Valley, R. C. Lind, and T. R. O’Meara
Opt. Lett. 11(9) 575-577 (1986)