Monolithic optical components for splitting of high-power beams [PDF]
, 2022 Paper 84900QHighly efficient beam splitters are important for a variety of high power laser applications. We prove different approaches like aperture and amplitude splitting for practicability for single- and multimode laser sources.
Mitra, T. +7 more
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Fabrication of Tungsten Micro Needle Arrays Using Laser Beam Machining [PDF]
한국정밀공학회지, 2021 Micro needle arrays have been widely used within medical contexts, such as for drug delivery and nervous electrodes, and its fabrication methods have attracted attention recently. This paper describes a novel fabrication method for micro needle arrays on
Jong Wuk Park, Haan Kim, Jong Hun Park
doaj +1 more source
Volume Bragg grating external cavities for the passive phase locking of high-brightness diode laser arrays : theoretical and experimental study [PDF]
, 2011 We describe the theoretical modeling of the external-cavity operation of a phase-locked array of diode lasers in two configurations, the self-imaging cavity based on the Talbot effect and the angular-filtering cavity. Complex filtering functions, such as
Jun Lim +19 more
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IEEE Photonics Journal, 2019 A fraction of a laser beam array, whose unknown piston phase relationships must be set to prescribed values, is launched into a scattering media with random transmission.
Jeremy Saucourt +4 more
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Experimental optimization of orbital angular momentum beams generated by coherent beam combining digital laser [PDF]
, 2023 International audienceWe experimentally implemented a genetic algorithm to improve the uniformity of a Laguerre-Gaussian beam generated with a 61-channels coherent beam combining digital ...
Ranély-Vergé-Dépré, Claude-Alban +5 more
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Design of a 36-W fiber-coupled green laser diode by Zemax
Results in Physics, 2018 We propose a design of a 36 W fiber-coupled green diode laser based on TO-Can packaged emitters using Zemax. This is achieved by beam collimation, spatial beam combining, polarized beam combining and fiber coupling.
Chuang Zhou +4 more
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Coherent Ray Tracing Simulation Of Non-Imaging Laser Beam Shaping With Multi-Aperture Elements [PDF]
EPJ Web of Conferences, 2019 The application of laser light sources for illumination tasks like in mask aligner lithography relies on non-imaging optical systems with multi-aperture elements for beam shaping.
Kirner Raoul +3 more
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Spectral Bandwidth Narrowing of High Brightness Spectral Beam Combining Diode Laser
IEEE Photonics Journal, 2017 We introduce a 5x demagnifying telescope system into an external cavity spectral beam combining and realize a narrow spectrum diode laser combining output by using a nine-emitter 970 nm diode laser mini-bar. With an external feedback mirror of 10%
Huicheng Meng +7 more
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Mitigating parametric instabilities in plasmas by sunlight-like lasers
Matter and Radiation at Extremes, 2021 Sunlight-like lasers that have a continuous broad frequency spectrum, random phase spectrum, and random polarization are formulated theoretically. With a sunlight-like laser beam consisting of a sequence of temporal speckles, the resonant three-wave ...
H. H. Ma +7 more
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Surface wettability control on zircaloy-4 by nanosecond Nd:YAG laser with beam homogenizer
AIP Advances, 2022 We introduce the laser-induced surface processing (LISP) method that imparts hydrophilicity and hydrophobicity using a Nd:YAG nanosecond laser, especially the high-fluence (HF) condition for fast processing and the low-fluence (LF) condition to control ...
Daewoong Park +6 more
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