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Shot-noise-limited laser power stabilization with a high-power photodiode array

MPS-Authors
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Kwee,  Patrick
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Willke,  Benno
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Danzmann,  Karsten
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

Opt_Lett34_2912.pdf
(Publisher version), 214KB

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Citation

Kwee, P., Willke, B., & Danzmann, K. (2009). Shot-noise-limited laser power stabilization with a high-power photodiode array. Optics Letters, 34(19), 2912-2914. doi:doi:10.1364/OL.34.002912.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-4691-8
Abstract
The output power of a cw Nd:YAG laser was stabilized in a dc-coupled feedback loop with a low-noise multiphotodiode detector and an electro-optic amplitude modulator in the frequency band from 1 Hz to 1 kHz. For the first time, to our knowledge, an independently measured relative power noise of2.4×10−9 Hz−1/2 at 10 Hz was achieved, fulfilling the power stability requirements of the Advanced LIGO (Laser Interferometer Gravitational-Wave Observatory) gravitational wave detector.