title: Bistability and noncommutative behavior of multiple-beam self-pulsing and self-pumping in BaTiO(3).
abstract: Two mutually incoherent beams from a multilongitudinal-mode Ar(+) laser have been used as simultaneous inputs to a self-pumped barium titanate crystal. With one beam positioned for self-pumping and the other for self-pulsing, the overall output behavior is seen to have two stable states that depend on the previous history of single-beam selfpumping or self-pulsing. During one of these output states, a spontaneously generated continuous loop of light is seen in the crystal, providing a coupling mechanism between the two mutually incoherent beams.
authors.forename: R W
authors.initials: RW
authors.lastname: Eason
authors.forename: A M
authors.initials: AM
authors.lastname: Smout