title: Self-induced coherent oscillations with photorefractive Bi(12)SiO(20) amplifier.
abstract: We report coherent oscillations due to self-induced moving gratings in photorefractive BSO crystals when recording with an external applied field. Different types of ring and phase-conjugate resonators pumped with low-incident- intensity beams and having short response times are demonstrated. The conditions permitting oscillation and the respective frequencies of the pump and the signal beams in the cavity are analyzed.
authors.forename: H
authors.initials: H
authors.lastname: Rajbenbach
authors.forename: J P
authors.initials: JP
authors.lastname: Huignard