Mid-IR optical parametric oscillation and second harmonic generation of repetitively pulsed output of a fibre-laser pumped Tm<sup>3+</sup> :YAP laser in a fan-out periodically poled MgO:LiNbO<sub>3</sub> crystal

Антипов, О.Л.; Kolker, D. B.; Dobrynin, Anton; Getmanovskiy, Yu.A.; Sharkov, V V; Chuvakova, M. A.; Akhmathanov, Andrew; Shur, V. Ya.; Shestakova, I.; Larin, Sergey V.

doi:10.1070/qel18006

Cited by 3 publications

(4 citation statements)

References 34 publications

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“…The in-band pumping of the 3 H6-3 F4 Tm 3+ -ion transition enables the high-efficiency and high-power operation of Tm 3+ -doped lasers at 1900-2100 nm with a low quantum defect [12][13][14][15][22][23][24][25][26][27]. Direct excitation of Tm 3+ ions into the upper laser level 3 F4 results in the reduced thermal load and high laser efficiency compared to the diode pumping into 3 H4 level with the cross relaxation ( 3 H4, 3 H6) → ( 3 F4, 3 F4).…”

Section: In-band Pumping Schemes Of Tm 3+ -And Ho 3+ -Doped Laser Cry...mentioning

confidence: 99%

“…The repetitively-pulsed radiations of the Tm 3+ :YAP and Tm 3+ :Lu2O3 lasers were used both for the mid-IR OPOs and SHGs in the periodically poled MgO:LiNbO3 crystals with a fan-out domain design by tuning the grating period and the crystal temperature [14,41]. The energy conversion efficiency of the degenerate OPO at 3820-3970 nm exceeded 43% at the 0.5 kHz repetition rate, while the energy conversion efficiency of SHG at 970.5 nm reached 34% [14].…”

Section: Tm 3+ -And Ho 3+ -Doped Crystal and Ceramic Lasers As The Pu...mentioning

confidence: 99%

“…In this paper an overview of our recent achievements in the 2-μm solid-state lasers based on Tm 3+doped ceramics (Lu2O3 or Y2O3) or YAP crystals in-band pumped by a fiber laser at 1670 nm is reported [12][13][14][15]. Different operation modes (CW, actively or passively Q-switch) of our lasers are described.…”

Section: Introductionmentioning

confidence: 99%

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High efficiency in-band pumped Tm- and Ho-doped 2-μm solid-state lasers

Антипов

2023

J. Phys.: Conf. Ser.

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The expansion of laser sources operating at 2-3 μm is motivated in large by strong absorption in atmospheric gases, liquid water, and plastics, critical for applications in remote sensing, soft and hard tissue surgery, and materials processing. 2-μm novel solid-state lasers based on Tm3+-doped ceramics (Lu2O3 or Y2O3) or YAP crystals in-band pumped by a fiber laser at 1670 nm are presented in this report. CW, actively or passively Q-switch operations of the Tm3+-doped lasers are described. The Tm3+ laser characteristics are compared with parameters of an in-band fiber-laser-pumped Ho3+:YAG laser. The 2-μm output of the lasers are used to pump the Cr2+-doped ZnSe or CdSe crystals. The lasers based on the Tm3+:Lu2O3 ceramics and the Tm3+:YAP crystal are also used as pump sources for mid-IR optical parametric oscillators (OPOs) or second-harmonic generators (SHGs). The high-efficiency oscillations are obtained at 3.8-4.1 μm in the OPOs based on a fun-out PPMg:LN; the SHGs provided the repetitively-pulsed radiations at 970-983 nm.

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Section: In-band Pumping Schemes Of Tm 3+ -And Ho 3+ -Doped Laser Cry...mentioning

confidence: 99%

Section: Tm 3+ -And Ho 3+ -Doped Crystal and Ceramic Lasers As The Pu...mentioning

confidence: 99%

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High efficiency in-band pumped Tm- and Ho-doped 2-μm solid-state lasers

Антипов

2023

J. Phys.: Conf. Ser.

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“…The 2 µm lasers based on the highly-Tm 3+ -doped YAG, YAP and YLF crystals with 1695 nm diode pumping were also presented [21]. The nonlinear frequency conversion of radiation of the in-band pumped lasers based on Tm 3+ -doped ceramics and crystals was recently demonstrated [22,23].…”

Section: Introductionmentioning

confidence: 99%

CW and Q-switched operations of a Tm³⁺:YAP laser at 1892–1994 nm In-band fiber-laser pumped at 1670 nm

Антипов¹,

Dobrynin²,

Getmanovskiy³

et al. 2022

Laser Phys.

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Tm3+:YAP lasers in-band fiber-laser pumped at 1670 nm with a linear or L-shaped cavity were studied in CW, actively and passively Q-switched regimes. High-efficiency CW and repetitively-pulsed operations were registered at three spectral regions: 1987–1994 nm, 1935–1941 nm and 1892–1897 nm. The transition between these three spectral regions was achieved by controlling the pump power and the output mirror in a laser cavity. The highest CW output power that was achieved without degrading the beam quality was 12.2 W at the 52% slope efficiency with respect to the incident pump. Acousto-optically Q-switched operation with the average power of 9.8 W at the 20 kHz pulse repetition rate (PRR) and 6 W at 3 kHz PRR was achieved, the pulse energy was scaled up to 2.7 mJ at 0.5 kHz PRR. The passive Q-switch operation at 1935–1938 nm was obtained using a Cr2+:ZnSe saturable absorber; the pulse energy reached 150 µJ at the 20 kHz PRR

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CW optical parametric oscillator for the mid-IR range

Yakovin¹,

Chapovsky²

2022

Quantum Electron.

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We report the development of a cw optical parametric oscillator (OPO) for the mid-IR range. The oscillator uses a 50-mm long periodically poled lithium niobate crystal in a ring resonator. The OPO is pumped by an ytterbium fibre laser with a wavelength of 1.064 μm. At a pump power of 10 W, the OPO generates continuous radiation with a wavelength of 3.6 μm and a power of 2.8 W. The pump power depletion in the OPO is 94of the OPO, i.e., the pump depletion, and on a quantum description of three interacting light waves. The power characteristics of the operating OPO are in good agreement with those predicted by the theoretical model.

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Mid-IR optical parametric oscillation and second harmonic generation of repetitively pulsed output of a fibre-laser pumped Tm³⁺ :YAP laser in a fan-out periodically poled MgO:LiNbO₃ crystal

Cited by 3 publications

References 34 publications

High efficiency in-band pumped Tm- and Ho-doped 2-μm solid-state lasers

High efficiency in-band pumped Tm- and Ho-doped 2-μm solid-state lasers

CW and Q-switched operations of a Tm³⁺:YAP laser at 1892–1994 nm In-band fiber-laser pumped at 1670 nm

CW optical parametric oscillator for the mid-IR range

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Mid-IR optical parametric oscillation and second harmonic generation of repetitively pulsed output of a fibre-laser pumped Tm3+ :YAP laser in a fan-out periodically poled MgO:LiNbO3 crystal

Cited by 3 publications

References 34 publications

High efficiency in-band pumped Tm- and Ho-doped 2-μm solid-state lasers

High efficiency in-band pumped Tm- and Ho-doped 2-μm solid-state lasers

CW and Q-switched operations of a Tm3+:YAP laser at 1892–1994 nm In-band fiber-laser pumped at 1670 nm

CW optical parametric oscillator for the mid-IR range

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Product

Resources

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Mid-IR optical parametric oscillation and second harmonic generation of repetitively pulsed output of a fibre-laser pumped Tm³⁺ :YAP laser in a fan-out periodically poled MgO:LiNbO₃ crystal

CW and Q-switched operations of a Tm³⁺:YAP laser at 1892–1994 nm In-band fiber-laser pumped at 1670 nm