Single-frequency Q-switched Cr,Nd:YAG laser operating at 946-nm wavelength

Liu, Hua; Hornia, O.; Chen, Y.C.; Zhou, Shouhuan

doi:10.1109/2944.585809

Cited by 33 publications

(4 citation statements)

References 12 publications

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“…For that reason, especially in case of longer crystals, absorption of the laser wavelength might be eliminated in the regions of high pump intensity being around the focal spot the pump beam. However, the absorption coefficient of Nd:YAG at the laser wavelength with a thermally populated lower laser level is around 0.15 cm −1 [24]. Outside the resonator (in front of the energy detector) a filter is used to prevent measurements at significantly shorter wavelength (e.g.…”

Section: Methodsmentioning

confidence: 99%

“…The first report on a monolithic passively Q-switched Nd:YAG laser operating at 946 nm was given by H. Liu Figure 2 (online color at www.lphys.org) Schematic drawing of the experimental setup. 1 -laser diode, 2 -pump fiber, 3 -SMA connector, 4 -incoupling optics, 5 -laser crystal and passive Qswitch (Nd:Cr:YAG), 6 -output coupler, 7 -filter, 8 -expanding optics et al [24]. This laser provided pulse energies up to 25 µJ @ 4.6 ns, an optical efficiency of approximately 2.1%, and an average power of 25 mW.…”

Section: Pump Bandsmentioning

confidence: 99%

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Millijoule Q-switched Nd:YAG laser operating at 946 nm

2010

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Abstract:Quasi three-level laser operation of Nd:YAG at 946 nm is reported. Applying an end-pumped configuration pulse energies of more than 2 mJ @ 14 ns at a repetition rate of 10 Hz have been achieved. This output performance corresponds, according to the authors' knowledge, to the highest reported values for such compact passively Q-switched solid-state lasers emitting around 0.9 μm.Pulse length , ns τ p

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Section: Methodsmentioning

confidence: 99%

Section: Pump Bandsmentioning

confidence: 99%

Millijoule Q-switched Nd:YAG laser operating at 946 nm

2010

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“…We would like to compare the obtained results with those obtained in Qswitched crystal Nd:YAG lasers at the same wavelength. For reported Q-switched crystal Nd:YAG lasers at 946 nm [25][26][27][28][29], the optical conversion efficiencies were in the range of 2.1 -17.6%, and the maximum output power was 2.1 W. The results obtained in this paper, 2.64 W output…”

Section: Resultsmentioning

confidence: 51%

Diode-pumped Q-switched 946 nm Nd:YAG ceramic laser

Zhang

Wang

et al. 2009

Laser Phys. Lett.

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A diode‐pumped Q‐switched ceramic Nd:YAG laser operating at 946 nm has been demonstrated in our experiment for the first time. When using a fiber‐coupled laser diode with a fiber diameter of 600 μ m as the pump source, an average output power of 2.64Wat a repetition rate of 50 kHz was obtained when the incident pump power was 17.39 W. When the fiber diameter was 400 μ m, with an incident pump power of 11.56 W, an average output power of 1.79 W was achieved at a repetition rate of 50 kHz, corresponding to an optical conversion efficiency of 15.5%. The maximum pulse energy of 120.89 μ J and the minimum pulse width of 56 ns were obtained at a repetition rate of 10 kHz. The laser results of the Q‐switched ceramic laser material was comparable to the best values obtained in 946 nm Qswitched crystal Nd:YAG lasers. (© 2009 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)

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“…Short laser pulses are generated by solid state lasers using various active media types crystals, glasses or ceramic) operated in Q-switching techniques have a large number of applications in many civilian and military applications such as laser remote sensing, laser satellite networking, laser communication, many nonlinear optics experiments, material processing ( website : http:// jsci.utq.edu.iq Email: utjsci@utq.edu.iq nanomaterials) formation by using ablation technique, projectile guidance over long distances and range finding applications [1][2][3][4][5][6][7]. Passive Q-switching is more economical, simple, and practical.…”

Section: Introductionmentioning

confidence: 99%

Influence of Absorption cross section of saturable absorber on Passive Q-switching laser pulse characteristics

Salih

2014

UTJsci

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The absorption cross section of saturable absorber influence on passive Q-switching laser pulse behavior has been studied by numerical solution of rate equations mathematical model. We report the passive Q-switching of the 2 4 4 Cr : BeAl O + (alexandrite) laser with the yttrium silicate 2 5 4 Cr :Y SiO + (Cr :YSO) solid state saturable absorber. The study shows that the behavior pulse energy, initial value of population inversion, and the laser photon number is scaling up when the ground state absorption cross section of saturable absorber increasing, while the behavior of pulse duration is scaling down.

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Single-frequency Q-switched Cr,Nd:YAG laser operating at 946-nm wavelength

Cited by 33 publications

References 12 publications

Millijoule Q-switched Nd:YAG laser operating at 946 nm

Millijoule Q-switched Nd:YAG laser operating at 946 nm

Diode-pumped Q-switched 946 nm Nd:YAG ceramic laser

Influence of Absorption cross section of saturable absorber on Passive Q-switching laser pulse characteristics

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