Results 11 to 20 of about 882,775 (293)
High Power Laser Science and Engineering, 2023 The spatial distribution of beams with orbital angular momentum in the far field is known to be extremely sensitive to angular aberrations, such as astigmatism, coma and trefoil. This poses a challenge for conventional beam optimization strategies when a
J. B. Ohland +6 more
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Beam quality factor of aberrated Laguerre-Gaussian optical beams
Optics Express, 2023 The influence of aberrations on the beam quality factor of Laguerre-Gaussian beams is investigated. We derive analytical expressions for the beam quality factor due to astigmatism and spherical aberration. We show that the width of a Laguerre-Gaussian beam is a significant parameter that determines the aberration effects on the beam quality factor. For
Chemist M. Mabena +4 more
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Research on beam quality control technology of 2 μm antimonide semiconductor laser
Frontiers in Physics, 2022 Antimonide semiconductor laser is a new type of laser with unique advantages in the 2 μm band. However, employing FP cavities causes multiple transverse modes to degrade beam quality despite achieving higher power output.
Sensen Li +9 more
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60% Efficient Monolithically Wavelength-Stabilized 970-nm DBR Broad-Area Lasers
IEEE Photonics Journal, 2022 Progress in epitaxial design is shown to enable increased optical output power Popt and power conversion efficiency ηE and decreased lateral far-field divergence angle in GaAs-based distributed Bragg reflector (DBR) broad-area (BA) diode lasers ...
Paul Crump +5 more
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Analysis on Beam Quality of Solid-State Tube MOPA System With Zigzag Beam Path
IEEE Photonics Journal, 2019 All-solid-state tube lasers (ASSTLs) with zigzag beam path combine the attractive properties of rod, slab, and disk lasers. However, the analysis on the beam quality of tube lasers is rarely reported.
Boyu Tian +4 more
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2-kW Average Power CW Phase-Conjugate Solid-State Laser [PDF]
, 2007 We have demonstrated stable operation of a 2-kW Yb:YAG phase-conjugate master oscillator power amplifier (PC-MOPA) laser system with a loop phase-conjugate mirror (LPCM). This is the first demonstration of a continuous wave (CW)-input LPCM MOPA operating
Baltimore, Robert S. +8 more
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Beam Control in an Intracavity Frequency-Doubling Semiconductor Disk Laser
Applied Sciences, 2019 In this paper, we have demonstrated a 1.3 W green laser using a V-shaped intracavity frequency doubling 1036 nm semiconductor disk laser. The beam quality of the fundamental and second harmonic generation (SHG) laser is investigated.
Guanyu Hou +9 more
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IEEE Photonics Journal, 2021 The Kerr self-focusing and group-velocity dispersion (GVD) effects play important roles when a high-power pulsed laser beam propagates from the ground through the nonlinear and dispersive atmosphere to space orbits.
Yu Deng +5 more
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Optical Field Transmission Analysis of an All-Fiber Signal Combiner With a Dumbbell Shape
IEEE Photonics Journal, 2022 In this paper, the optical field transmission characteristics of an all-fiber signal combiner with a dumbbell shape and its application in laser beam combining are analyzed theoretically. Based on the three-layer waveguide model, the mode characteristics
Xuanfeng Zhou
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A Pair Polarimeter for Linearly Polarized High Energy Photons [PDF]
, 2004 A high quality beam of linearly polarized photons of several GeV will become available with the coherent bremsstrahlung technique at JLab. We have developed a polarimeter which requires about two meters of the beam line, has an analyzing power of 20% and
Abbott, D. +19 more
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