Abstract

The AEI 10 m Prototype interferometer is an experiment to investigate the standard quantum limit of interferometry and, in particular, its relevance in gravitational-wave detection. As such it has stringent requirements on the power stability of its high-power light source. In this Letter we present the power stabilization concept of the 35 W Nd:YAG laser system used in the AEI 10 m Prototype. With a shot-noise-limited multiphotodetector sensing scheme we achieved a relative power noise level of 1.8×109  Hz1/2 in a frequency band of 100 Hz to 1 kHz. The limiting noise sources at lower and higher frequencies are analyzed, and possible improvements on the power noise sensing are discussed.

© 2017 Optical Society of America

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Corrections

Jonas Junker, Patrick Oppermann, and Benno Willke, "Shot-noise-limited laser power stabilization for the AEI 10  m Prototype interferometer: publisher’s note," Opt. Lett. 42, 1067-1067 (2017)
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-42-6-1067

22 February 2017: A correction was made to paragraph 1 of page 3.


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