Optical chopper Q-switching for flashlamp-pumped Er,Cr:YSGG lasers

Murphy, Francis J.; Arbabzadah, E. A.; Bak, Alexey O.; Amrania, Hemmel; Damzen, M. J.; Phillips, Chris C.

doi:10.1088/1612-2011/12/4/045802

Cited by 5 publications

(5 citation statements)

References 19 publications

(29 reference statements)

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“…%. [10][11][12] In these heavily doped materials, laser performances are greatly limited by the accompanying thermal effects. In host materials such as CaF 2 and SrF 2 , the optimal doping concentration to realize ∼2.7 µm lasing is ∼4 at.…”

Section: Introductionmentioning

confidence: 99%

Passive Q-switching of ∼2.7 µm Er:Lu₂O₃ceramic laser with a semiconductor saturable absorber mirror

Ren

Shen

Zhang

et al. 2018

Jpn. J. Appl. Phys.

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We demonstrate the passively Q-switched operation of an Er:Lu 2 O 3 ceramic laser at >2.7 µm for the first time, to the best of our knowledge. By using a semiconductor saturable absorber mirror (SESAM), stable pulse trains with a repetition rate of 20-33.3 kHz are produced in a compacted v-shaped resonator. The pulse duration (FWHM), pulse energy, and peak power are 660 ns, 1.8 µJ, and >2.73 W, respectively, at 33.3 kHz repetition rate. Prospects for further improvements in terms of laser performances are discussed.

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Section: Introductionmentioning

confidence: 99%

Passive Q-switching of ∼2.7 µm Er:Lu₂O₃ceramic laser with a semiconductor saturable absorber mirror

Ren

Shen

Zhang

et al. 2018

Jpn. J. Appl. Phys.

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“…(2) Designing diode arrays for matrices that absorb This section summarizes the current status of the development of 3 µm Er-doped laser media and their lasers; overall, Er:YSGG and Er sesquioxide crystals are ideal active media for high-power continuous-wave lasers. High single-pulse energy outputs can be achieved through using Er:YAG, Er, Cr:YSGG, and Er:YLF crystals [127][128][129][130]. On the other hand, Er-doped laser media generally suffer from serious thermal effects and low conversion efficiency.…”

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

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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“…For actively Q-switched operation, an acousto-optically Q-switched Er:Y2O3 ceramic laser was demonstrated, generating pulses with durations of 41-190 ns in the range of 0.3-10 kHz [20]. Due to the scarcity of ~2.7-μm acousto-optic and electric-optic Q-switches, mechanical Q-switching is commonly used in a wavelength range of ~2.7-μm [21,22], which does not require high voltages or drive power and has avoidable insert losses.…”

Section: Introductionmentioning

confidence: 99%

Short-Pulse-Width Repetitively Q-Switched ~2.7-μm Er:Y2O3 Ceramic Laser

et al. 2017

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Abstract:A short-pulse-width repetitively Q-switched 2.7-µm Er:Y 2 O 3 ceramic laser is demonstrated using a specially designed mechanical switch, a metal plate carved with slits of both slit-width and duty-cycle optimized. With a 20% transmission output coupler, stable pulse trains with durations (full-width at half-maximum, FWHM) of 27-38 ns were generated with a repetition rate within the range of 0.26-4 kHz. The peak power at a 0.26 kHz repetition rate was~3 kW.

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Optical chopper Q-switching for flashlamp-pumped Er,Cr:YSGG lasers

Cited by 5 publications

References 19 publications

Passive Q-switching of ∼2.7 µm Er:Lu₂O₃ceramic laser with a semiconductor saturable absorber mirror

Passive Q-switching of ∼2.7 µm Er:Lu₂O₃ceramic laser with a semiconductor saturable absorber mirror

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

Short-Pulse-Width Repetitively Q-Switched ~2.7-μm Er:Y2O3 Ceramic Laser

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Optical chopper Q-switching for flashlamp-pumped Er,Cr:YSGG lasers

Cited by 5 publications

References 19 publications

Passive Q-switching of ∼2.7 µm Er:Lu2O3ceramic laser with a semiconductor saturable absorber mirror

Passive Q-switching of ∼2.7 µm Er:Lu2O3ceramic laser with a semiconductor saturable absorber mirror

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

Short-Pulse-Width Repetitively Q-Switched ~2.7-μm Er:Y2O3 Ceramic Laser

Contact Info

Product

Resources

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Passive Q-switching of ∼2.7 µm Er:Lu₂O₃ceramic laser with a semiconductor saturable absorber mirror

Passive Q-switching of ∼2.7 µm Er:Lu₂O₃ceramic laser with a semiconductor saturable absorber mirror