Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 62: Precision measurements and metrology IV

Q 62.6: Vortrag

Freitag, 21. März 2014, 15:30–15:45, DO24 1.101

Characterization of a high-power fiber amplifier — •Patrick Oppermann1, Thomas Theeg2, Hakan Sayinc2, and Benno Willke11Albert-Einstein-Institut Hannover — 2Laser Zentrum Hannover e. V.

A detailed beam characterization of continuous-wave single frequency fiber amplifier with an output power of more than 200 W at a wavelength of 1064 nm is presented. The power noise, frequency noise, beam pointing fluctuations and spatial beam quality were measured with a diagnostic instrument called diagnostic breadboard based on an optical ring resonator. The results are compared with the Advanced LIGO Pre-Stabilized Laser system. The laser was automatically characterized over a period of three weeks to investigate the long-term behavior. During this time the laser was running 24 hours a day, without showing any significant problems.

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