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  Quantum noise limits to simultaneous quadrature amplitude and phase stabilization of solid-state lasers

Huntington, E. H., Harb, C. C., Heurs, M., & Ralph, T. C. (2007). Quantum noise limits to simultaneous quadrature amplitude and phase stabilization of solid-state lasers. Physical Review A, 75(1): 013802. doi:10.1103/PhysRevA.75.013802.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4888-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-488A-8
Genre: Journal Article

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pra75_013802.pdf (Publisher version), 306KB
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Huntington, E. H., Author
Harb, C. C., Author
Heurs, M.1, Author              
Ralph, T. C., 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: A quantum mechanical model is formulated to describe the coupling between pump intensity noise and laser frequency noise in a solid-state laser. The model allows us to investigate the limiting effects of closed-loop stabilization schemes that utilize this coupling. Two schemes are considered: active control of the quadrature phase noise of the laser and active control of the amplitude noise of the laser. We show that the noise of the laser in the actively stabilized quadrature is ultimately limited by the vacuum noise introduced by the feedback beamsplitter in both schemes. In the case of active control of the quadrature phase noise, the noise is also limited by the intensity noise floor of the detection scheme. We also show that some sources of noise in the passively stabilized quadrature can be suppressed and that it is possible to achieve simultaneous quadrature amplitude and phase stabilization of a solid-state laser. However, the quantum mechanically driven noise in the passively stabilized quadrature cannot be suppressed. While this poses the ultimate limit to the noise in the passively stabilized quadrature, we show that it is experimentally feasible to observe squeezing directly generated by a solid-state laser using this technique.

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 Dates: 2007-01
 Publication Status: Published in print
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Title: Physical Review A
Source Genre: Journal
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Pages: - Volume / Issue: 75 (1) Sequence Number: 013802 Start / End Page: - Identifier: ISSN: 1050-2947