title: Phase locking in a Nd:YVO₄ waveguide laser array using Talbot cavity.
abstract: We demonstrated phase-locking in a laser-diode-array-pumped Nd:YVO₄ laser array (15 emitters) using a Talbot cavity. The Nd:YVO₄ slab crystal was coated by dielectric material for claddings and formed a planar waveguide for the vertical mode. To stabilize the horizontal array mode, periodical thermal lenses were generated by controlling the heat flow. The phase-locked waveguide array generated 1.65-W output power, while 2.02 W was available in a standard cavity. Two-peak supermode was demonstrated with the Talbot cavity and was converted to a single peak with a spatial light modulator. We also experimentally and numerically analyzed the characteristics of Talbot phase-locking.
authors.forename: Kenichi
authors.initials: K
authors.lastname: Hirosawa
authors.forename: Seiichi
authors.initials: S
authors.lastname: Kittaka
authors.forename: Yu
authors.initials: Y
authors.lastname: Oishi
authors.forename: Fumihiko
authors.initials: F
authors.lastname: Kannari
authors.forename: Takayuki
authors.initials: T
authors.lastname: Yanagisawa