Self-pumped optical phase conjugation has been demonstrated for the first time to our knowledge in a resonant atomic system. This process was implemented by using a single cw pump beam to excite a sodium-vapor oscillator. The counterpropagating optical fields inside this oscillator then combine with the pump beam in an internal four-wave-mixing interaction to yield the phase conjugate of the incident (pump) beam.
© 1989 Optical Society of America
Original Manuscript: August 15, 1988
Manuscript Accepted: December 9, 1988
Published: February 15, 1989
C. J. Gaeta, J. F. Lam, and R. C. Lind, "Continuous-wave self-pumped optical phase conjugation in atomic sodium vapor," Opt. Lett. 14, 245-247 (1989)