2021
DOI: 10.1364/ol.422702
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High pulse energy ZnGeP2 OPO directly pumped by a Q-switched Tm3+-doped single-oscillator fiber laser

Abstract: A mid-infrared Z n G e P 2 optical parametric oscillator pumped by a T m 3 + -doped fiber laser is reported, providing pulse energies of 230 µ J , pulse widths of 40 ns, and peak powers of ∼ 6 k W with excellent efficiency and beam quality. The pump source is an actively … Show more

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Cited by 18 publications
(6 citation statements)
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“…High peak power nanosecond TDFLs operating at 2μm band have unique applications such as nonlinear frequency conversion [1,2], mid-infrared supercontinuum generation [3] and biomedicine. Compared with the traditional approach of Q-switching, gain-switching is a promising tool due to its compact geometry, narrow linewidth, and convenience in realizing all fiber structures.…”
Section: Introductionmentioning
confidence: 99%
“…High peak power nanosecond TDFLs operating at 2μm band have unique applications such as nonlinear frequency conversion [1,2], mid-infrared supercontinuum generation [3] and biomedicine. Compared with the traditional approach of Q-switching, gain-switching is a promising tool due to its compact geometry, narrow linewidth, and convenience in realizing all fiber structures.…”
Section: Introductionmentioning
confidence: 99%
“…Fiber-laser-pumped optical parametric oscillators based on nonlinear crystals like Zinc Germanium Phosphide (ZGP) have been shown to generate high power and pulse energies in the mid-IR efficiently. [1][2][3] The requirements on their pump lasers include high pulse energies and average output powers with ideal beam quality and narrow linewidth at wavelengths longer than 2 µm, where ZGP exhibits a lower background absorption. 4 TDFLs are well-known for providing high output powers with diffraction-limited beam quality but their extractable pulse energy in the nanosecond-regime is generally limited by the onset of parasitic lasing and fiber nonlinearities.…”
Section: Introductionmentioning
confidence: 99%
“…Such systems have demonstrated peak pulse powers of up to 11 kW, with an average output power of 8.1 W and a conversion efficiency of 39 %. [9][10][11] Recently, diode seeded MOPA systems have proven to be effective pump sources. The conversion efficiencies were highly increased with efficiencies up to 59 % and average MWIR output powers of 8.1 W. 12,13 This efficiency boost is primarily attributed to the unique pulse shaping capability of such systems.…”
Section: Introductionmentioning
confidence: 99%