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Feedback control of optical beam spatial profiles using thermal lensing
Zhanwei Liu, Paul Fulda, Muzammil A. Arain +4
A method for active control of the spatial profile of a laser beam using adaptive thermal lensing is described. A segmented electrical heater was used to generate thermal gradients…
Phase effects due to beam misalignment on diffraction gratings
Deepali Lodhia, Daniel Brown, Frank Brueckner +4
All-reflective interferometer configurations have been proposed for the next generation of gravitational wave detectors, with diffractive elements replacing transmissive optics. Ho…
Generation of high-purity higher-order Laguerre-Gauss beams at high laser power
L. Carbone, C. Bogan, P. Fulda +2
We have investigated the generation of highly pure higher-order Laguerre-Gauss (LG) beams at high laser power of order 100W, the same regime that will be used by 2nd generation gra…