Results 151 to 160 of about 7,683 (202)
Frontiers in Microbiology, 2018 Bacterial manganese (Mn) oxidation is catalyzed by a diverse group of microbes and can affect the fate of other elements in the environment. Yet, we understand little about the enzymes that catalyze this reaction.
Michael Medina +7 more
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Laser Congress 2023 (ASSL, LAC), 2023
A four-pass Er:YAG vortex master-oscillator-power-amplification (MOPA) system enabling power amplification of 1.6 μm single-frequency high-order vortex beams is demonstrated. The gain up to 2.36 with no mode purity and linewidth loss, is achieved.
Shiyao Fu +3 more
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A four-pass Er:YAG vortex master-oscillator-power-amplification (MOPA) system enabling power amplification of 1.6 μm single-frequency high-order vortex beams is demonstrated. The gain up to 2.36 with no mode purity and linewidth loss, is achieved.
Shiyao Fu +3 more
openaire +1 more source
1.2 kW all-fiber narrow-linewidth picosecond MOPA system
High Power Laser Science and Engineering, 2023 Achieving an all-fiber ultra-fast system with above kW average power and mJ pulse energy is extremely challenging. This paper demonstrated a picosecond monolithic master oscillator power amplifier system at a 25 MHz repetition frequency with an average ...
Jiexi Zuo, xu shuang, xuechun chen
exaly +3 more sources
Mopa Mopa Images in the Colonial Northern Andes
2021During the seventeenth and eighteenth centuries, Indigenous Andeans meticulously decorated wooden objects using a unique plant resin known as barniz de Pasto or mopa mopa. Focusing on these objects, the dissertation identifies and subverts the epistemic asymmetries at play when we analyze Indigenous production in colonial contexts.
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Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Edition. CLEO '99. Conference on Lasers and Electro-Optics (IEEE Cat. No.99CH37013), 1999
Summary form only given. Power scaling of CW diode pumped lasers is plagued by thermal aberrations. We present a novel power scaling method using the benefits of bright pumping to achieve high brightness in an oscillator and high gain in a CW amplifier.
L. Gonzalez, K. Kleine, L.R. Marshall
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Summary form only given. Power scaling of CW diode pumped lasers is plagued by thermal aberrations. We present a novel power scaling method using the benefits of bright pumping to achieve high brightness in an oscillator and high gain in a CW amplifier.
L. Gonzalez, K. Kleine, L.R. Marshall
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Conference on Lasers and Electro-Optics-Europe, 1998
An excimer XeCl MOPA has been developed by SOPRA for applications such as X-ray generation and shock hardening of metals and alloys.
S. Branly, B. Godard, R. Fabbro
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An excimer XeCl MOPA has been developed by SOPRA for applications such as X-ray generation and shock hardening of metals and alloys.
S. Branly, B. Godard, R. Fabbro
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Advanced Solid State Lasers, 1987
Spaceborne remote sensing laser energy requirements exceed 1 joule per pulse for some applications. To meet this requirement, NASA Langley is currently investigating the operation of Ti:Al2O3 in Master Oscillator Power Amplifier (MOPA) configurations.
James C. Barnes +2 more
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Spaceborne remote sensing laser energy requirements exceed 1 joule per pulse for some applications. To meet this requirement, NASA Langley is currently investigating the operation of Ti:Al2O3 in Master Oscillator Power Amplifier (MOPA) configurations.
James C. Barnes +2 more
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Modulation characteristics of MFA-MOPAs
Proceedings of LEOS '93, 2002The monolithic flared-amplifier master oscillator/power amplifier (MFA-MOPA) has emerged as a preferred technology for obtaining high power, diffraction-limited optical output from a single-frequency semiconductor source. Diffraction-limited operation has recently been demonstrated to an optical output power of 3 W cw with greater than 90% of the ...
K.M. Kzurko +3 more
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161 W middle infrared ZnGeP2 MOPA system pumped by 300 W-class Ho:YAG MOPA system
Optics Letters, 2020We demonstrated a high-power Q -switched two-stage Ho:YAG master-oscillator power-amplifier (MOPA) system dual-end pumped by Tm:YLF lasers. A new method was introduced by rotating and swapping spatial axial directions of pump beams to improve the beam quality of the Ho:YAG oscillator and first-stage amplifier.
Gaoyou Liu +10 more
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