Results 21 to 30 of about 471,078 (279)
, 2017 Two major volume Bragg grating (VBG) applications will be presented and in particular laser beam combining and holographically encoded phase masks. Laser beam combining is an approach where multiple lasers are combined to produce more power.
I. Divliansky
semanticscholar +1 more source
Beam combining of quantum cascade laser arrays
Optics Express, 2009 Wavelength beam combining was used to co-propagate beams from 28 elements in an array of distributed-feedback quantum cascade lasers (DFB-QCLs). The beam-quality product of the array, defined as the product of near-field spot size and far-field divergence for the entire array, was improved by a factor of 21 by using wavelength beam combining.
Lee, Benjamin +7 more
openaire +4 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
PHOTOREFRACTIVE TECHNIQUES FOR DIODE LASER BEAM COMBINATION [PDF]
Journal of Nonlinear Optical Physics & Materials, 1992 Techniques for high-power laser array beam combination processes involving photo-refractive materials are reviewed. Details of an all semiconductor laser scheme for the amplification and subsequent photorefractive beam clean-up of a diffraction limited single-mode laser output is presented. Powers in excess of 100 mW (>220 mW accounting for Fresnel
MacCormack, S., Eason, R.W.
openaire +2 more sources
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
doaj +1 more source
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
doaj +1 more source
All-fiber 7x1 signal combiner for incoherent laser beam combining
LASE, 2011 We demonstrate an all-fiber 7x1 signal combiner for incoherent laser beam combining. This is a potential key component for reaching several kW of stabile laser output power.
D. Noordegraaf +7 more
semanticscholar +1 more source
Applied Sciences, 2022 The high-precision diffraction grating is an important chromatic dispersion component that has been widely used in many fields, including laser beam combining, chirped pulse compression, spectroscopy, among others.
Ye Wang +5 more
doaj +1 more source