Results 121 to 130 of about 7,499 (174)
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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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Beam perturbations through a MOPA chain
SPIE Proceedings, 2001A theoretical and experimental study investigated beam perturbations on propagation through a MOPA chain, including both optical and medium influences. Analytical models are presented to explain the influence of thermal aberrations on the beam, and these effects are related directly to the change in M2 (quality factor) of the beam.
Andrew Forbes +4 more
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Frequency-doubled FDML-MOPA laser in the visible
Optics Letters, 2019Wavelength-swept lasers enable high-speed measurements in absorption spectroscopy, Raman spectroscopy, nonlinear Raman hyperspectral microscopy, rapid confocal microscopy, short impulse generation, and most importantly for high-speed optical coherence tomography, with speeds up to video-rate volumetric imaging.
Sebastian Karpf, Bahram Jalali
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100 kW Coherently Combined Slab MOPAs
Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, 2009We are developing a 100-kW Nd:YAG cw solid-state laser system. Seven wavefrontcorrected 15-kW MOPA (master oscillator power amplifier) laser chains are phase locked to achieve a single aperture output beam with good beam quality.
Stuart J. McNaught +15 more
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