Results 21 to 30 of about 3,061,892 (250)

High Brightness Diode Lasers Based on Beam Splitting and Polarization Combining

Applied Sciences, 2022
A new method to improve the brightness of diode lasers based on beam-waist splitting and polarization combining was proposed and demonstrated. The beam waist was split by a precisely cut prism into two parts and combined with a polarization beam combiner.
Yufei Zhao, Cunzhu Tong, Lijie Wang, Yanjing Wang, Huanyu Lu, Xin Zhang, Zhipeng Wei, Lijun Wang   +7 more
doaj   +1 more source

High Brightness Diode Laser Based on V-Shaped External Cavity and Beam-Waist Splitting Polarization Combining

Applied Sciences, 2023
A beam combining method to improve the brightness of diode lasers is proposed based on a V-shaped external cavity spectral beam and beam-waist splitting polarization combination.
Yufei Zhao, Cunzhu Tong, Zhipeng Wei, Jian Feng, Lijie Wang   +4 more
doaj   +1 more source

Coherent beam combining architectures for high power tapered laser arrays

, 2022
Paper 100860O, 11 S.Coherent beam combining (CBC) aims at increasing the spatial brightness of lasers. It consists in maintaining a constant phase relationship between different emitters, in order to combine them constructively in one single beam.
Erbert, G., Lucas-Leclin, G., Traub, M., Witte, U., Hanna, S., Janicot, S., Schimmel, G., Decker, J., Georges, P., Crump, P.   +9 more
core   +2 more sources

Optical trapping with superfocused high-M2 laser diode beam [PDF]

, 2015
Many applications of high-power laser diodes demand tight focusing. This is often not possible due to the multimode nature of semiconductor laser radiation possessing beam propagation parameter M2 values in double-digits.
Kuchinskii, V. I., S. N. Loseva, Deryagin, A. G., M. Farsarib, Soboleva, K.K., V. V. Dudelev, W. Sibbett, Rafailov, E. U., Dudelev, V. V., Melissinaki, V., Deryagin, A.G., V. V. Dudeleva, Sobolev, K. K., K. K. Soboleva, V. Melissinaki, Kuchinskii, V.I., A. G. Deryagin, V. I. Kuchinskiia, Rafailov, E.U., G. S. Sokolovskii, Losev, S.N., A. G. Deryagina, V. I. Kuchinskii, M. Farsari, K. K. Sobolevac, Sokolovskii, G.S., V. Melissinakib, W. Sibbette, G. S. Sokolovskiia, Sokolovskii, G. S., Dudelev, V.V., E. U. Rafailov, Farsari, M., Losev, S. N., Sibbett, W., E. U. Rafailovf, S. N. Losev   +36 more
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Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

, 2012
In laser　cutting　of　thick　steel　sheets,　quality　difference　is　observed　between　cut　surfaces　obtained　with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Remy Fabbro, Koji Hirano, FABBRO, Rémy, HIRANO, Koji   +3 more
core   +1 more source

Optical micromanipulation using ultrashort pulsed laser sources [PDF]

, 2007
In this thesis two previously separate fields of study are brought together: optical micromanipulation and ultrashort laser research. Here, the benefits of combining the high peak powers of ultrashort pulsed lasers and conventional optical ...
Little, Helen
core   +2 more sources

Study of fundamental parameters in hybrid laser welding [PDF]

, 2011
This thesis undertakes a study of laser welding in terms of basic laser material interaction parameters. This includes power density, interaction time and specific point energy.
Suder, Wojciech
core   +3 more sources

Finite element simulation of magnesium alloys laser beam welding [PDF]

, 2010
The authors are grateful to FONDERIE MESSIER (HONSEL group) that provided the as-cast magnesium alloy workpieces. The authors would like also to acknowledge the technical support of Dr.
BESSROUR, Jamel, MASSE, Jean-Eric, BELHADJ, Asma, BOUHAFS, Mahmoud, BARRALLIER, Laurent   +4 more
core   +1 more source

Development and Thermal Management of kW-Class High-Power Diode Laser Source Based on the Structure of Two-Stage Combination

IEEE Photonics Journal, 2019
In this paper, we present an optical structure for two-stage beam combination to realize a high-power fiber-coupled diode laser source. In the first stage, dense spectral combination based on reflecting volume Bragg gratings is implemented for combining ...
Hongbo Zhu, Shengli Fan, Jian Zhao, Xingchen Lin, Li Qin, Yongqiang Ning   +5 more
doaj   +1 more source

Implementation or Suppression of the Collective Lasing of the Laser Channels at the Intracavity Spectral Beam Combining

Photonics, 2023
The spectral and spatial output parameters of a two-channel, Yb-doped fiber laser operating in the intracavity spectral beam combining mode were investigated.
Vladimir A. Kamynin, Vitalii V. Kashin, Dmitri A. Nikolaev, Vladimir B. Tsvetkov   +3 more
doaj   +1 more source