title: High-power, narrow-bandwidth mid-infrared PPMgLN optical parametric oscillator with a volume Bragg grating.
abstract: We report on a high-power, narrow spectral bandwidth 2.907 µm PPMgLN optical parametric oscillator (OPO) pumped by a 1.064 µm pulsed Nd:YAG MOPA laser source. Free-running operation of the OPO exhibits maximum average output power of 71.6 W at 2.907 µm with a slope efficiency of 26.7%. Broad 2.907 μm spectral bandwidth of the free-running OPO was suppressed from ~9 nm to less than 0.7 nm by using a VBG as one cavity mirror. The maximum average power was 51.7 W at 2907.55 nm for the spectrum-narrowed OPO, corresponding to a slope efficiency of 22.5%. Continuously tunable ranges of ~8 nm around 2.907 µm had been achieved via adjusting the temperatures of the VBG and PPMgLN accordingly.
authors.forename: Yuefeng
authors.initials: Y
authors.lastname: Peng
authors.forename: Xingbin
authors.initials: X
authors.lastname: Wei
authors.forename: Zan
authors.initials: Z
authors.lastname: Nie
authors.forename: Xingwang
authors.initials: X
authors.lastname: Luo
authors.forename: Jue
authors.initials: J
authors.lastname: Peng
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.forename: Deyuan
authors.initials: D
authors.lastname: Shen
mesh_terms: D000669:Amplifiers, Electronic; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005246:Feedback; D007259:Infrared Rays; D053844:Lasers, Solid-State; D007909:Lenses; D008027:Light; D009991:Oscillometry / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*