<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e701" altimg="si6.svg"><mml:msub><mml:mrow><mml:mi mathvariant="normal">ZnGeP</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math> optical parametric oscillator with wide temperature tuning

Wang, Hai; Tian, Juntao; Zhao, Lili; Li, Zhiyong; Tan, Rongqing

doi:10.1016/j.optcom.2023.129584

Cited by 8 publications

(1 citation statement)

References 13 publications

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“…A method use of OPO approach based on a hybrid solid-state and ber lasers. Various nonlinear crystals have been used for mid-wave OPOs [4]. The optical parametric oscillator depends on zinc germanium phosphide (ZGP) crystal is widely used [5].…”

Section: Introductionmentioning

confidence: 99%

Influence of pump source beam quality and OPO cavity resonance regime on output characteristics of mid-infrared ZGP-OPO laser

Ebadian,

Tooski,

Maleki

et al. 2023

Preprint

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In this paper, the effect of the pump beam quality on the output results of ZGP-OPO nonlinear conversion pumped by a Q-switched Ho:YLF laser at 2.056 𝜇m wavelength was studied. In the experimental setup, two cavity resonance regimes were applied. First, a U-shape Q-switched resonator at two types of concave-concave and concave-convex structures was investigated. Output energies of 60 and 55 mJ at 24.5 ns of pulse duration were achieved for the resonators mentioned above with double-pass pumping, respectively. In the concave-convex resonator, a far-field beam divergence angle of about 0.7 mrad was recorded, although the conversion efficiency was lower. The maximum conversion efficiency of the linear OPO cavity with a concave-plane structure was recorded. A 30.5 mJ total energy of parametric waves was measured at the PE-DRO resonance regimes pumped by 55 mJ incident energy in the concave-convex resonator at 2056.8 nm Q-switched laser, which corresponds to an optical-to-optical efficiency of 53.5 %. The peak of signal and idler waves are 3779.5 and 4507.6 nm, respectively. The pulse width is about 22.4 ns at the PE-DRO resonance regime

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Section: Introductionmentioning

confidence: 99%