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  Strong reduction of laser power noise by means of a Kerr nonlinear cavity

Khalaidovski, A., Thüring, A., Rehbein, H., Lastzka, N., Willke, B., Danzmann, K., et al. (2009). Strong reduction of laser power noise by means of a Kerr nonlinear cavity. Physical Review A, 80(5): 053801. doi:10.1103/PhysRevA.80.053801.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-469F-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-46A1-4
Genre: Journal Article

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PhysRevA_80_053801.pdf (Publisher version), 264KB
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 Creators:
Khalaidovski, Alexander1, Author              
Thüring, Andre1, Author              
Rehbein, Henning1, Author              
Lastzka, Nico1, Author              
Willke, Benno1, Author              
Danzmann, Karsten1, Author              
Schnabel, Roman1, Author              
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1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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 Abstract: We demonstrated the power noise reduction of a continuous-wave laser field by means of an effective third-order Kerr nonlinear cavity. In contrast to conventional noise reduction schemes relying on linear cavities, a strong noise suppression at Fourier frequencies below the linewidth of the nonlinear cavity was possible. The laser light was reflected off a Kerr nonlinear cavity that had a half width half maximum linewidth of 4.5 MHz. The cavity was operated slightly off-resonance at approximately half of the maximum power buildup, close to its so-called critical state; a power noise reduction of up to 32 dB at Fourier frequencies below 1 MHz was observed after reflection. The effective third-order nonlinearity was a so-called cascaded second-order nonlinearity of MgO:LiNbO3. The laser had a power of 0.75 W at the wavelength of 1064 nm.

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 Dates: 2009
 Publication Status: Published in print
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Title: Physical Review A
Source Genre: Journal
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Pages: - Volume / Issue: 80 (5) Sequence Number: 053801 Start / End Page: - Identifier: -