title: Efficient second-harmonic generation using a semiconductor tapered amplifier in a coupled ring-resonator geometry.
abstract: A new approach for efficient second-harmonic generation using diode lasers is presented. The experimental setup is based on a tapered amplifier operated in a ring resonator that is coupled to a miniaturized enhancement ring resonator containing a periodically poled lithium niobate crystal. Frequency locking of the diode laser emission to the resonance frequency of the enhancement cavity is realized purely optically, resulting in stable, single-frequency operation. Blue light at 488 nm with an output power of 310 mW is generated with an optical-to-optical conversion efficiency of 18%.
authors.affiliation: Universität Potsdam, Institut für Physik und Astronomie, Lehrstuhl für Photonik, Potsdam, Germany. danilo.skoczowsky@uni-potsdam.de
authors.forename: Danilo
authors.initials: D
authors.lastname: Skoczowsky
authors.forename: Andreas
authors.initials: A
authors.lastname: Jechow
authors.forename: Ralf
authors.initials: R
authors.lastname: Menzel
authors.forename: Katrin
authors.initials: K
authors.lastname: Paschke
authors.forename: Götz
authors.initials: G
authors.lastname: Erbert