Fe:ZnSe laser pumped by a 2.93-
	    
	    
μ
m

	    
	   Cr, Er:YAG laser*

Li, Yingyi; Dai, Tongyu; Duan, Xiaoming; Guo, Chunfa; Xu, Long; Ju, Youlun

doi:10.1088/1674-1056/28/6/064203

Cited by 5 publications

(4 citation statements)

References 19 publications

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“…In 2013, E. A. Arbabzadah [69] obtained pulse energies of up to 55 mJ and sloped efficiencies of 20.5% with 50 at.% Er:YSGG (Figure 4a) [69]. In 2015, Wang [70] diode-pumped 30 at.% Er:YSGG with an average output power of 10.1 W and a slope efficiency of 6.5% was obtained by compensating the thermal lens to obtain a The 3 µm Er-doped laser can be used as a pump source for the Fe laser [66,67], which is favorable for generating a 4~5 µm laser output [4,5,7,68]. So, the main requirements for Er laser systems are compactness, stability, a high output energy, and efficiency.…”

Section: Er:ysggmentioning

confidence: 99%

“…However, this has the disadvantages of low efficiency and instability. In 2019, Li et al [66] achieved a 2.93 µm laser output with a maximum pulse energy of 1.414 J using flash-lamp-pumped Er,Cr:YAG. It was the first time that Fe:ZnSe was pumped at cryogenic cooling and room temperature [66].…”

Section: Er:ysggmentioning

confidence: 99%

“…In 2019, Li et al [66] achieved a 2.93 µm laser output with a maximum pulse energy of 1.414 J using flash-lamp-pumped Er,Cr:YAG. It was the first time that Fe:ZnSe was pumped at cryogenic cooling and room temperature [66]. In 2021, Dmitry Martyshkin et al [67] used a mechanically Q-switched flash-lamp-pumped Er:YAG laser with a maximum output energy of 220 mJ as a pump source.…”

Section: Er:ysggmentioning

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: Er:ysggmentioning

confidence: 99%

Section: Er:ysggmentioning

confidence: 99%

Section: Er:ysggmentioning

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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“…[1] PCMs can be employed in building energy storage systems, waste heat recovery systems, thermo-regulating fibres, smart textiles and solar thermal energy conversion. [2][3][4] Among the various types of PCMs, polyethylene glycol (PEG) as the most promising solid/liquid PCM has been extensively investigated owing to its high phase transition enthalpy, low vapour pressure, good chemical and thermal stability, suitable phase-change temperature and non-toxicity. [5] These remarkable properties have drawn considerable research efforts to synthesise new composite PCMs based on PEG and to study their thermal performance.…”

Section: Introductionmentioning

confidence: 99%

Thermally Conductive and Shape‐Stabilized Polyethylene Glycol/Carbon Foam Phase‐Change Composites for Thermal Energy Storage

et al. 2020

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Phase‐change materials (PCMs) have been widely investigated as candidates for thermal energy storage and solar thermal energy conversion. However, low thermal conductivity and poor shape stability during phase transition processes are detrimental to their practical applications. In this study, we designed composite PCMs based on carbon foam (CF) via the vacuum impregnation method to overcome these problems. CF with 3D interconnected microporous structures and good compressive strength was fabricated from phenolic resin (PF) using a combined process of carbonization and sacrificial template techniques. The developer material is considered a promising support material for PCMs. The as‐prepared polyethylene glycol/CF composite (PCC) exhibited a high energy‐storage density with a melting enthalpy of 135.7 J/g, and the thermal conductivity was enhanced by 109.8% compared to that of pure polyethylene glycol. In addition, the PCC showed excellent thermal stability and leakage‐proof performance after 100 heating/cooling cycles and good compressive strength. Because of the simple preparation process and low cost, PCC is a promising material for various thermal energy storage applications, especially in building energy storage systems.

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