A high beam quality laser-diode end-pumped Nd:GdVO4 slab laser

Yan, Ying; Zhang, H. L.; Sha, Pengfei; Cui, Li; Li, R. N.; Lin, Xiao-Lu; Zhang, H. J.; He, Jingliang; Xin, Jianguo

doi:10.1134/s1054660x10110320

Cited by 10 publications

(7 citation statements)

References 31 publications

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“…Then the ISO announced the latest version of M 2 factor measurement standard, ISO11146-1/2/3 [7], which has brought about unification by defining all relevant quantities for laser beams in the measurement instructions. Now, the M 2 factor is well established for beam quality characterization method in the laser community [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Beam qualityM²factor matrix for non-circular symmetric laser beams

Zheng

2016

Laser Phys.

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It is standard to use M x2 and M y 2 to characterize the beam quality of a non-circular symmetrical beam on its x-axis and y-axis orientation. However, we knew that the values of M x 2 and M y 2 are inconsistent if one selects a different coordinate system or measures beam quality with different experimental conditionals, even when analyzing the same beam. To overcome this, a new beam quality characterization method, the M 2 factor matrix, is developed. It not only contains the beam quality terms, M x 2 and M y 2 , to characterize the beam quality along x-axis and y-axis orientation for the non-symmetric beam, but also introduces two additional cross terms, M xy and M yx , which are used to characterize the location relationship between the principal axis of the test beam and coordinate system in experiment. Moreover, M 2 factor matrix can be measured with a similar procedure to the traditional M 2 factor whose measurement instructions are described in ISO11146 by adding some additional image and signal processing procedure. The measurement principle and method is present and the experiment system for beam quality M 2 factor matrix is built to demonstrate the performance of M 2 factor matrix with real experiments.

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Section: Introductionmentioning

confidence: 99%

Beam qualityM²factor matrix for non-circular symmetric laser beams

Zheng

2016

Laser Phys.

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“…Neodymium (Nd) doped crystalline based lasers operating at ∼ 1 μm have been extensively studied for their large variety of applications such as industry, medicine and scientific research [1][2][3][4]. A substantial amount work has been done on the lasing characteristics of Nd doped oxide and fluoride crystals, and this is especially the case concerning the host crystals YAG, YVO 4 , and LiYF 4 [5][6][7][8][9]. Compared with oxides, fluoride crystals are interesting due to their high transparency in a wide wavelength range and low phonon-energy which reduces nonradiative relaxation.…”

Section: Introductionmentioning

confidence: 99%

Crystal growth, spectroscopic characterization, and continuous wave laser operation of Nd3+-doped LiLuF4 crystal

et al. 2011

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Nd 3+ -doped LiLuF 4 single crystal with high optical quality was grown by Czochralski technique. The segregation coefficient of Nd 3+ in LiLuF4 crystal was determined by the inductively coupled plasma atomic emission spectrometry method. Polarized absorption and fluorescence spectra were investigated. The peak absorption cross section at 792 nm and peak emission cross section at 1053 nm are 6.94×10−20 and 7.60×10 −20 cm 2 , respectively. With a laser-diode as the pump source, a maximum 6.22 W continuous-wave laser output at 1053 nm has been obtained with a slope efficiency of 37.2% with respect to the pump power. Output power as a function of the incident pump power for the Nd:LiLuF4 laser

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“…Nd:GdVO 4 crystal is an excellent laser crystal for solid-state laser [10][11][12][13] because it has high absorption and emission cross sections [14,15].…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, a 1166 nm Raman laser was successfully demonstrated using Nd:GdVO 4 as laser crystal and LiIO 3 as Raman crystal. Nd:GdVO 4 crystal is an excellent laser crystal for solid-state laser [10][11][12][13] because it has high absorption and emission cross sections [14,15]. Furthermore, it has high thermal conductivity, higher than Nd:YVO 4 crystal, which would benefit for lasers' steady and high output power.…”

Section: Introductionmentioning

confidence: 99%

LD-pumped Nd:GdVO4 Raman laser at 1166 nm with LiIO3 crystal

Liu

Sun

et al. 2011

Laser Phys. Lett.

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Abstract:We demonstrated an all solid-state Nd:GdVO 4 Raman laser using LiIO3 as Raman crystal. The maximum output power of 0.645 W was obtained at 1166 nm, corresponding to the conversion efficiency of 8.5%. The Raman laser generated pulse width of 1166 nm as short as 9 ns, which was about four times shorter than that of fundamental light of 1.06 μm. The maximum pulse energy of 62 μJ and the highest peak power of 5.1 kW were achieved with pulse repetition frequency of 5 kHz. Pulse energy versus incident pump power

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A high beam quality laser-diode end-pumped Nd:GdVO4 slab laser

Cited by 10 publications

References 31 publications

Beam qualityM²factor matrix for non-circular symmetric laser beams

Beam qualityM²factor matrix for non-circular symmetric laser beams

Crystal growth, spectroscopic characterization, and continuous wave laser operation of Nd3+-doped LiLuF4 crystal

LD-pumped Nd:GdVO4 Raman laser at 1166 nm with LiIO3 crystal

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A high beam quality laser-diode end-pumped Nd:GdVO4 slab laser

Cited by 10 publications

References 31 publications

Beam qualityM2factor matrix for non-circular symmetric laser beams

Beam qualityM2factor matrix for non-circular symmetric laser beams

Crystal growth, spectroscopic characterization, and continuous wave laser operation of Nd3+-doped LiLuF4 crystal

LD-pumped Nd:GdVO4 Raman laser at 1166 nm with LiIO3 crystal

Contact Info

Product

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Beam qualityM²factor matrix for non-circular symmetric laser beams

Beam qualityM²factor matrix for non-circular symmetric laser beams