Widely tunable (2.6–10.4 μm) BaGa4Se7 optical parametric oscillator pumped by a Q-switched Nd:YLiF4 laser
Loading...
Date
2018
Authors
Kolker, Dmitri
Kostyukova, N.
Boyko, A.
Badikov, V.
Badikov, D.
Shadrintseva, A.
Tretyakova, N.
Zenov, K.
Karapuzikov, A.
Zondy, Jean-Jacques
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing
Abstract
We report on the first BaGa4Se7 nanosecond optical parametric oscillator pumped by Q-switched Nd:YLiF4 laser at 1053 nm. The oscillator exhibits a pump threshold energy as low as 0.25 mJ. Mid-infrared (MIR) idler wave tuning from 2.6 μm to 10.4 μm is demonstrated with an angle-tuned type-I (o-ee) y-cut sample, highlighting the superior performance of this novel large bandgap chalcogenide nonlinear crystal to generate tunable coherent radiation over its full MIR transparency range (0.47–18 μm). The phase-matching data are used to identify the most accurate dispersion relations of this compound among three recently published Sellmeier equations. Damage threshold measurements yielded values as high as 2.04 J cm−2 at 100 Hz pulse repetition rate, one of the largest among existing MIR χ (2)nonlinear materials.
Description
https://iopscience.iop.org/article/10.1088/2399-6528/aab007
Keywords
BaGa4Se7, nonlinear chalcogenide, optical parametric oscillator, OPO, mid-infrared, mid-IR, Research Subject Categories::NATURAL SCIENCES::Physics::Other physics::Optics, Research Subject Categories::TECHNOLOGY::Engineering physics::Optical physics
Citation
Kolker, D. B., Kostyukova, N. Y., Boyko, A. A., Badikov, V. V., Badikov, D. V., Shadrintseva, A. G., … Zondy, J.-J. (2018). Widely tunable (2.6–10.4μm) BaGa4Se7optical parametric oscillator pumped by a Q-switched Nd:YLiF4laser. Journal of Physics Communications, 2(3), 35039. https://doi.org/10.1088/2399-6528/aab007