Growth, spectroscopy and high-power laser operation of Er:YAP crystal with different Er3+ concentrations

Quan, Cong; Sun, Dunlu; Zhang, Huili; Luo, Jianqiao; Hu, Lunzhen; Han, Zhiyuan; Qiao, Yingjie; Dong, Kunpeng; Chen, Yuwei; Cheng, Maojie

doi:10.1016/j.jlumin.2022.119122

Cited by 11 publications

(5 citation statements)

References 18 publications

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“…A Φ 4 mm × 105 mm crystal rod was cut and processed from a high-quality b-axis 15 at.% Er:YAP crystal, which possesses better spectroscopy and laser performance according to our previous study. [15] The experimental laser setup was designed and constructed as shown in Fig. 1.…”

Section: Laser Experimental Setupmentioning

confidence: 99%

“…[13] Moreover, YAP has a lower phonon energy and natural birefringence property, the former is beneficial for improving the laser efficiency and the latter can decrease the thermal depolarization loss and then enhance the laser output energy. [14,15] Therefore, Er:YAP crystal is a promising medium to realize a high-power (energy) mid-infrared laser output, and it is expected to obtain a high pulse energy and high-frequency laser under xenon lamp-pumped conditions.…”

Section: Introductionmentioning

confidence: 99%

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High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes

et al. 2023

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We demonstrate a high-energy and high-power pulse laser on a xenon lamp-pumped Er:YAP crystal. The laser performance and thermal focal lengths under different working frequencies are discussed, the results show that the thermal lens effect is gradually aggravated with the increase of working frequencies, and even working at 100 Hz, a single pulse energy of 234 mJ can be achieved. A maximum average power of 41.5 W is achieved with a working frequency of 20 Hz and slope efficiency of 2.82%. This output power is much higher than other xenon lamp-pumped Erbium laser devices. A Q-switched laser is demonstrated by using the TeO2 crystal, the maximum output energies of 11.5 and 3.5 mJ are obtained at 50 and 100 Hz, the corresponding peak powers are 93.4 and 17.2 kW. The laser wavelengths and beam quality factors are also characterized in the free running and Q-switched modes, respectively. A higher pulse energy and peak power laser could be achieved further by improving the damage threshold of TeO2 A-O Q-switching. All the experimental results illustrate that the xenon lamp-pumped Er:YAP laser is a promising candidate for the high-power and high-frequency mid-infrared laser device.

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Section: Laser Experimental Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes

et al. 2023

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“…[10][11][12] In the field of laser technology, Er 3+ :YAlO 3 has been used as a gain medium for mid-infrared lasers due to its broad gain bandwidth and good thermal conductivity. 13 Moreover, Er 3+ :YAlO 3 is widely employed in catalytic applications in combination with various catalysts for hydrogen production and photocatalytic degradation. 5,14,15 Currently, Er 3+ :YAlO 3 materials are predominantly utilized in the form of particles, and various synthesis methods, including solid-state reaction, sol-gel method and hydrothermal synthesis, have been developed for the preparation of Er 3+ :YAlO 3 nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…In sensing applications, Er 3+ :YAlO 3 ‐based UCNPs have been used as probes for detecting pH, temperature and biomolecules 10–12 . In the field of laser technology, Er 3+ :YAlO 3 has been used as a gain medium for mid‐infrared lasers due to its broad gain bandwidth and good thermal conductivity 13 . Moreover, Er 3+ :YAlO 3 is widely employed in catalytic applications in combination with various catalysts for hydrogen production and photocatalytic degradation 5,14,15 …”

Section: Introductionmentioning

confidence: 99%

Fabrication of Er³⁺:YAlO₃ fibers by electrospinning method for upconversion luminescence applications

Gan,

Tian,

Wang

et al. 2023

Int J Applied Ceramic Tech

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This study aimed to prepare YAlO3 fibers doped with 2 mol% Er3+ using electrospinning and a carbon‐free sol system as the precursor. X‐ray diffraction, thermal gravimetry and differential thermal analysis, and Fourier transform infrared were employed to characterize the thermal behavior and crystallization process of the precursor fibers. Scanning electron microscope analysis showed that the Er3+:YAlO3 fibers had a uniform diameter of 1 μm, a dense and crack‐free surface, and a non‐porous cross‐section. Upon excitation at 450 and 488 nm, upconverted luminescence spectra were obtained from the Er3+:YAlO3 fibers. This observation indicates their potential as upconversion luminescent agents capable of converting visible light into ultraviolet light. These properties make the Er3+:YAlO3 fibers promising candidates for various upconversion luminescence applications.

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“…An Er:YAP crystal (b-cut, space group: Pbnm; ordered from CRYTUR) with a doping concentration of 5 at.% was used. This 5 at.% doping concentration was chosen because it demonstrated excellent laser efficiency at room temperature in our previous study [8], meanwhile, it was a relatively low doping concentration among all reported 3-µm Er:YAP lasers operating at room temperature [20,21], which implies a good balance between thermal effects and laser efficiency during lasing process. The crystal had a cross section of 2 mm × 5 mm and a length of 8 mm.…”

mentioning

confidence: 99%

Cryogenically cooled 2.8 μm Er:YAP laser with watt-level output power

Yao

Uehara

et al. 2022

Appl. Phys. Express

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We report the first watt-level, cryogenically cooled Er:YAP laser operating in the 3-µm spectral region. The spectroscopic properties of a 5 at.% Er:YAP crystal were studied at cooling temperatures ranging from 77–290 K. The fluorescence lifetime of the 4I11/2 level associated with the 3-µm laser transition decreased with an increase in temperature; whereas, the lifetime of the 4I13/2 level increased with an increase in temperature. Moreover, over 1 W of output power at 2798 nm was achieved from the liquid-nitrogen-cooled Er:YAP laser with a slope efficiency of 20%, and the limitations to higher output power were discussed.

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Growth, spectroscopy and high-power laser operation of Er:YAP crystal with different Er3+ concentrations

Cited by 11 publications

References 18 publications

High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes

High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes

Fabrication of Er³⁺:YAlO₃ fibers by electrospinning method for upconversion luminescence applications

Cryogenically cooled 2.8 μm Er:YAP laser with watt-level output power

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Growth, spectroscopy and high-power laser operation of Er:YAP crystal with different Er3+ concentrations

Cited by 11 publications

References 18 publications

High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes

High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes

Fabrication of Er3+:YAlO3 fibers by electrospinning method for upconversion luminescence applications

Cryogenically cooled 2.8 μm Er:YAP laser with watt-level output power

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Fabrication of Er³⁺:YAlO₃ fibers by electrospinning method for upconversion luminescence applications