We report on the use of a sodium-seeded flame as an amplifying phase conjugator. The environment is unique in that a number density of 1016 cm-3 is maintained despite a lateral dimension of 1 mm. We combine two of these optically pumped flames to form a phase-conjugate resonator. Finally, we observe oscillation that is due to the action of a single flame and two pump beams.
© 1987 Optical Society of America
John Pender and Lambertus Hesselink, "Sodium phase-conjugate oscillator in a combusting environment," Opt. Lett. 12, 693-695 (1987)