title: Reductions of threshold for a mid-infrared optical parametric oscillator by an intracavity optical amplifier.
abstract: We demonstrate that the threshold for a mid-IR optical parametric oscillator based on periodically poled LiNbO3 is significantly reduced by the introduction of an optical amplifier inside the cavity. Thresholds as low as 8 mW and a tuning range of 3.0-4.2 microm were attained for stable single-mode operation.
authors.affiliation: Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA.
authors.forename: Ioulia B
authors.initials: IB
authors.lastname: Zotova
authors.forename: Yujie J
authors.initials: YJ
authors.lastname: Ding
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Mu
authors.forename: Jacob B
authors.initials: JB
authors.lastname: Khurgin