The evolution of modulated light in a nonlinear medium, when described in terms of intensity waves, depends critically on a phase-matching condition for the intensity waves. We formally develop the conditions for quasi-phase matching of the interacting intensity waves and show that a periodic nonlinearity can be utilized to eliminate the dephasing between them. This is verified using stimulated Brillouin scattering with a periodically nonlinear optical fiber that has a period length equal to one-half of the (modulation) wavelength of the intensity waves.
© 2006 Optical Society of America
Original Manuscript: June 20, 2006
Revised Manuscript: July 19, 2006
Manuscript Accepted: July 20, 2006
Published: September 11, 2006
Shmuel Sternklar, Er'el Granot, David Kwiat, Tal Arditi, Moshe Tur, and Shalva Ben-Ezra, "Quasi-phase-matched generation of optical intensity waves," Opt. Lett. 31, 2894-2896 (2006)