title: Single-frequency operation of a broad-area laser diode by injection locking of a complex spatial mode via a double phase conjugate mirror.
abstract: We demonstrate what is believed to be the first phase-coherent locking of a high-power broad-area diode to a single-frequency master laser. We use photorefractive double phase conjugation to lock the diode in a self-optimized complex spatial mode while the photorefractive crystal diffracts that complex mode in a near-diffraction-limited beam.
authors.affiliation: Department of Physics, Twente University, Enschede, The Netherlands. p.d.vanvoorst@utwente.nl
authors.forename: P D
authors.initials: PD
authors.lastname: van Voorst
authors.forename: H L
authors.initials: HL
authors.lastname: Offerhaus
authors.forename: K J
authors.initials: KJ
authors.lastname: Boller