Using photorefractive two-wave mixing in a strontium barium niobate (SrxBa1-xNb2O6) crystal in conjunction with a self-pumped barium titanate (BaTiO3) phase conjugator, we have demonstrated the cleanup of a phase-distorted laser beam. A clean seed beam is amplified by the phase-aberrated pump beam through the photorefractive two-wave mixing process. The optical phase conjugation is used to eliminate the phase aberration introduced by the photorefractive gain medium.
© 1986 Optical Society of America
Arthur E. Chiou and Pochi Yeh, "Laser-beam cleanup using photorefractive two-wave mixing and optical phase conjugation," Opt. Lett. 11, 461-463 (1986)