Optical components for tailoring beam properties of multi-kW diode lasers

Könning, Tobias; Köhler, Bernd; Wolf, P.; Bayer, Andreas; Hubrich, Ralf; Bodem, Christian; Plappert, Nora; Kindervater, Tobias; Faßbender, Wilhelm; Dürsch, Sascha; Küster, Matthias; Biesenbach, Jens

doi:10.1117/12.2253793

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横向模式控制研究进展1

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Cited by 2 publications

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“…北京凯普林通过空间叠加激光单管和偏振合束, 200 μm/0.22光纤输出600 W [51] . [57] , 并通过偏振合束和5个波长合束, 400 μm/0.12光纤输出4600 W [58] . [59] , 并报道了连续输出 25~40 kW (2000 μm/0.2)的多波长合束光源 [60,61] .…”

Section: 横向模式控制研究进展unclassified

Advances in high power high beam quality diode lasers

Zhang¹,

Chen²,

Q³

et al. 2017

Chin. Sci. Bull.

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Section: 横向模式控制研究进展unclassified

Advances in high power high beam quality diode lasers

Zhang¹,

Chen²,

Q³

et al. 2017

Chin. Sci. Bull.

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Design of a 10 kW level diode laser optical stack with a line shape beam spot

et al. 2020

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We designed and simulated a diode laser with output power of more than 10 kW and a line shape beam spot of approximately 14 − 58 m m × 1.6 m m ( 1 / e 2 width). The diode laser was assembled with high fill factor diode laser bars that can be cooled with filtered tap water. The diode laser bar was beam shaped with a tilted cylindrical lens array to twist the slow axis of individual emitters by 90 deg, and then the slow axis was collimated with a single cylindrical lens. From the simulation, 20 laser diode bars with the same wavelength formed a diode laser optical stack with an output power of more than 3.5 kW, a beam spot of 31 m m × 12 m m size, and full divergence angles of around 6 mrad in both the horizontal and vertical directions. Then, three laser diode optical stacks with different wavelengths were wavelength-multiplexed to obtain an output power of more than 10 kW. Finally, the diode laser optical stack was transformed by simple cylindrical lenses to form a line shape spot with a working distance longer than 250 mm. Our diode laser design is much simpler than previous devices with similar output power and can find various applications such as high-speed laser cladding.

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Optical components for tailoring beam properties of multi-kW diode lasers

Cited by 2 publications

References 6 publications

Advances in high power high beam quality diode lasers

Advances in high power high beam quality diode lasers

Design of a 10 kW level diode laser optical stack with a line shape beam spot

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