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  Development of a control scheme of homodyne detection for extracting ponderomotive squeezing from a Michelson interferometer

Sakata, S., Sato, S., Somiya, K., Fukushima, M., Kawamura, S., & Sugamoto, A. (2006). Development of a control scheme of homodyne detection for extracting ponderomotive squeezing from a Michelson interferometer. Journal of Physics: Conference Series, 32, 464-469.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4CAF-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4CB0-E
Genre: Conference Paper

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jpconf6_32_071.pdf (Publisher version), 273KB
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 Creators:
Sakata, Shihori, Author
Sato, Shuichi, Author
Somiya, Kentaro1, Author              
Fukushima, Mitsuhiro, Author
Kawamura, Seiji, Author
Sugamoto, Akio, Author
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1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, escidoc:24010              

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 Abstract: We developed a control scheme of homodyne detection. To operate the homodyne detector as easy as possible, a simple Michelson interferometer is used. Here a motivation that the control scheme of the homodyne detection is developed is for our future experiment of extracting the ponderomotively squeezed vacuum fluctuations. To obtain the best signalto- noise ratio using the homodyne detection, the homodyne phase should be optimized. The optimization of the homodyne phase is performed by changing a phase of a local oscillator for the homodyne detection from a point at which a signal is maximized. In fact, in this experiment, using the developed control scheme, we locked the Michelson interferometer with the homodyne detector and changed the phase of the local oscillator for the homodyne detection. Then, we measured signals quantity changed by changing the phase of the local oscillator for the homodyne detection. Here we used the output from the homodyne detection as the signal.

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 Dates: 2006
 Publication Status: Published in print
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Title: Sixth Edoardo Amaldi Conference on Gravitational Waves
Place of Event: Bankoku Shinryoukan, Okinawa, Japan
Start-/End Date: 2005-06-20 - 2005-06-24

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Title: Journal of Physics: Conference Series
Source Genre: Journal
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Pages: - Volume / Issue: 32 Sequence Number: - Start / End Page: 464 - 469 Identifier: -