High brightness diode pumped Er:YAG laser system at 2.94 µm with nearly 1kW peak power

Messner, Manuel; Heinrich, A.; Hagen, Clemens; Unterrainer, K.

doi:10.1117/12.2209098

Cited by 8 publications

(3 citation statements)

References 6 publications

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“…Most pump sources are LDs around 970 nm, except the Cr 3+ -doped crystals, which possess wide absorption bands and are suitable for lamp pumping, as noted in the table. Both the overall conversion efficiency and maximum power/energy output are approaching the level of Er:YAG [52], Er:YLF [53], Er:YSGG [54], etc. Further research should focus on the Q-switching operation for high-peak-power output, as only free-running CW and pulsed Er 3+ -doped GYSGG lasers have been reported.…”

Section: Mid-infrared Laser Performance Of Crybhopr: Gysggmentioning

confidence: 99%

Laser Performance of Neodymium- and Erbium-Doped GYSGG Crystals

Zhong

2019

Crystals

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Garnet crystals possess many properties that are desirable in laser host materials, e.g., they are suitable for diode laser (LD) pumping, stable, hard, optically isotropic, and have good thermal conductivity, permitting laser operation at high average power levels. Recently, a new garnet material, GYSGG, was developed by replacing some of the yttrium ions (Y3+) with gadolinium ions (Gd3+) in YSGG, demonstrating great potential as a laser host material. GYSGG crystals doped with trivalent neodymium ion (Nd3+) and erbium ions (Er3+) were successfully grown for laser generation in the near- and mid-infrared range, with some of the laser performances reaching the level of mature laser gain media. This paper gives an overview of the achievements made in Nd3+- and Er3+-doped GYSGG lasers at different wavelength ranges. Additionally, full descriptions on Q-switching, mode-locking and wavelength-selecting methods for Nd:GYSGG, and the mechanisms of power scaling by co-doping sensitizers and deactivators in Er:GYSGG, are given. It is expected that this review will help researchers from related areas to quickly gain an understanding of these laser materials and promotes their commercialization and applications.

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Section: Mid-infrared Laser Performance Of Crybhopr: Gysggmentioning

confidence: 99%

Laser Performance of Neodymium- and Erbium-Doped GYSGG Crystals

Zhong

2019

Crystals

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“…In recent years, semiconductor lasers with a wavelength of 970 nm have been developed gradually. In 2016, Pantec successively introduced 970 nm high-energy diode modules [64] that greatly contributed to the development of high single-pulse energy 3 µm Er-doped lasers. Diode-pumped Er:YAG and Er,Cr:YSGG lasers have been successfully commercialized to achieve pulse outputs with a maximum energy of 600 mJ.…”

Section: Er:yagmentioning

confidence: 99%

“…For example, a diode-pumped Er:YAG continuous laser with 1 W output power has been established. In 2016, Manuel Messner et al showed a 50 at.% Er:YAG laser pumped by a high-energy diode with an average output power of up to 50 W [64]. At present, the diode-pumped Er:YAG laser has not broken through the limitation of the laser upper level lifetime to achieve a high power or high energy laser output [65].…”

Section: Er:yagmentioning

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 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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Effect of erbium concentration on optical properties of Er:YLF laser crystals

Hong

Zhang

et al. 2017

Infrared Physics & Technology

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High brightness diode pumped Er:YAG laser system at 2.94 µm with nearly 1kW peak power

Cited by 8 publications

References 6 publications

Laser Performance of Neodymium- and Erbium-Doped GYSGG Crystals

Laser Performance of Neodymium- and Erbium-Doped GYSGG Crystals

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

Effect of erbium concentration on optical properties of Er:YLF laser crystals

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