A compact Er:YLF laser with a passive Fe^2+:ZnSe shutter

Inochkin, M. V.; Korostelin, Yu. V.; Ландман, А. И.; Назаров, В. Е.; Sachkov, Dmitry; Podmar’kov, Yu P; Фролов, М П; Khloponin, L. V.; Khramov, V. Yu.

doi:10.1364/jot.79.000337

Cited by 17 publications

(6 citation statements)

References 10 publications

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“…Their concentrations range from 1.7 at.% to 5 at.% [78][79][80][81][82][83][84][85][86][87][88][89][90]. Er:YLF crystals commonly have an Er 3+ doping concentration of 15 at.% [91][92][93][94][95][96][97][98][99][100][101][102][103]. Compared with garnet crystals, fluoride crystals have lower phonon energies [2,7,51,82,83,86] (447 cm −1 ; 280 cm −1 ; 322 cm −1 ) that help to reduce the non-radiative transition and multi-phonon relaxation probability between energy levels.…”

Section: Development Status Of Er-doped Fluoride Crystals and Their L...mentioning

confidence: 99%

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Development of the 2.7 μm to 3 μm Erbium-Doped Laser

Liu,

Gu,

Liu

et al. 2023

Crystals

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The 3 μm wavelength band laser is located on the strong absorption peak of water and the atmospheric transmission window. The 3 μm laser with high single pulse energy is used in medical treatment for cutting soft tissues and bones during surgery. It is used as a pump source for optical parametric oscillators, and Fe lasers can realize 3~5 μm or 8~14 μm laser output, which has an irreplaceable role in certain areas (e.g., optoelectronic countermeasures, LIDAR, atmospheric monitoring, etc.). Commercial semiconductor-pumped Er lasers are capable of achieving 3 μm laser output of 600 mJ with the maturation of a 970 nm semiconductor laser. The conversion efficiency is significantly improved. However, the energy is lower than a flash-lamp-pumped Er laser. There are still serious crystal thermal effects and an inefficient conversion process. In this paper, the energy-level systems of 3 μm Er-doped lasers are discussed. A summary of the current state of research on Er lasers using different matrices and the commercialization of Er-doped lasers with wavelengths ranging from 2.7 μm to 3 μm is also provided. Several technical means are given to enhance laser performance. Furthermore, the development of Er-doped solid-state lasers with wavelengths between 2.7 and 3 μm is envisaged in the near future.

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Section: Development Status Of Er-doped Fluoride Crystals and Their L...mentioning

confidence: 99%

“…It realized 2720-2840 nm tuning at 11 different wavelengths. In 2012, M. V. Inochkin [96][97][98][99] used Fe:ZnSe crystals for Q-switching, and the device is shown in Figure 5b. It obtained a 2.81 µm laser output of 3 mJ and a pulse width of 30 ns [96][97][98][99].…”

Section: Er:ylfmentioning

confidence: 99%

Development of the 2.7 μm to 3 μm Erbium-Doped Laser

Liu,

Gu,

Liu

et al. 2023

Crystals

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“…The solid-state laser based on Er 3+ has been widely investigated as a compact 3 µm laser source for use in medicine science, material processing, remote atmospheric sensing, infrared countermeasures, and optical pump sources for longer wavelength oscillators [1][2][3][4][5]. For some applications, such as material processing, remote sensing, and laser lidar, etc, a nanosecond pulsed laser with a high pulse repetition rate is essential for the operating efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…For some applications, such as material processing, remote sensing, and laser lidar, etc, a nanosecond pulsed laser with a high pulse repetition rate is essential for the operating efficiency. Due to the low value of the emission cross section of erbium (Er) 3 µm transition and the serious thermal effect resulting from the large quantum defect, a Q-switched solid-state laser based on Er 3+ is generally achieved with a low repetition-rate flash lamp or quasicontinuous-wave diode laser pumped scheme, and the pulse repetition rates are limited [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Highly stable self-pulsed operation of an Er:Lu₂O₃ceramic laser at 2.7µm

et al. 2017

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We report on the highly stable self-pulsed operation of a 2.74 µm Er:Lu 2 O 3 ceramic laser pumped by a wavelength locked narrow bandwidth 976 nm laser diode. The operating pulse repetition rate is continuously tunable from 126 kHz to 270 kHz depending on the pump power level. For 12.3 W of absorbed diode pump power, the Er:Lu 2 O 3 ceramic laser generates 820 mW of average output power at a 270 kHz repetition rate and with a pulse duration of 183 ns. The corresponding pulse-to-pulse amplitude fluctuation is estimated to be less than 0.7%. In the continues-wave (CW) mode of operation, the laser yields over 1.3 W of output power with a slope efficiency of 11.9% with respect to the 976 nm pump power.

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“…[3,4] Erbium-doped crystal with many eye-catching characteristics is becoming one of the most attractive gain media in generating the pulsed lasers around 1.6 µm. [5] Er:YAG, [6] Er:YLF, [7] Er:LuYAG [8] have been extensively investigated for the generation of a 1.6 µm laser as resonantly pumped erbium-doped host material. Due to its robust thermo-mechanical properties and long upper-state lifetime (about 6.5 ms) of 4 I 13/2 , Er:YAG crystal proves itself to be one of the most attractive laser materials for 1.6 µm cw and Q-switched lasers.…”

mentioning

confidence: 99%

Continuous-Wave and Actively Q-Switched Diode-Pumped Er:LuAG Ring Laser at 1650 nm

Taguchi

et al. 2016

Chinese Phys. Lett.

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We demonstrate a cw and actively Q-switched Er:LuAG laser resonantly dual-end-pumped by 1532 nm fibre-coupled laser diodes. A maximum cw output power of 1.9 W at 1650.3 nm is obtained at a pump power of 25.5 W, corresponding to a slope efficiency of 43.3%. In the Q-switched regime, the maximum pulse energy of 3.51 mJ is reached at a pulse repetition rate of 100 Hz, a pulse duration of 90.5 ns and a pump power of 25.5 W. At the repetition rate of 400 Hz, the output energy is 2.12 mJ, corresponding to a pulse duration of 125.4 ns.

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A compact Er:YLF laser with a passive Fe^2+:ZnSe shutter

Cited by 17 publications

References 10 publications

Development of the 2.7 μm to 3 μm Erbium-Doped Laser

Development of the 2.7 μm to 3 μm Erbium-Doped Laser

Highly stable self-pulsed operation of an Er:Lu₂O₃ceramic laser at 2.7µm

Continuous-Wave and Actively Q-Switched Diode-Pumped Er:LuAG Ring Laser at 1650 nm

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A compact Er:YLF laser with a passive Fe^2+:ZnSe shutter

Cited by 17 publications

References 10 publications

Development of the 2.7 μm to 3 μm Erbium-Doped Laser

Development of the 2.7 μm to 3 μm Erbium-Doped Laser

Highly stable self-pulsed operation of an Er:Lu2O3ceramic laser at 2.7µm

Continuous-Wave and Actively Q-Switched Diode-Pumped Er:LuAG Ring Laser at 1650 nm

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Highly stable self-pulsed operation of an Er:Lu₂O₃ceramic laser at 2.7µm