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  All-reflective coupling of two optical cavities with 3-port diffraction gratings

Burmeister, O., Britzger, M., Thüring, A., Friedrich, D., Brückner, F., Danzmann, K., et al. (2010). All-reflective coupling of two optical cavities with 3-port diffraction gratings. Optics Express, 18(9), 9119-9132. doi:10.1364/OE.18.009119.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-B8EC-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-B8EE-1
Genre: Journal Article

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1004.2141 (Preprint), 463KB
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 Creators:
Burmeister, Oliver1, Author              
Britzger, Michael1, Author              
Thüring, Andre1, Author              
Friedrich, Daniel1, Author              
Brückner, Frank, Author
Danzmann, Karsten1, Author              
Schnabel, Roman1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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Free keywords: Physics, Optics, physics.optics
 Abstract: The shot-noise limited sensitivity of Michelson-type laser interferometers with Fabry-Perot arm cavities can be increased by the so-called power-recycling technique. In such a scheme the power-recycling cavity is optically coupled with the interferometer's arm cavities. A problem arises because the central coupling mirror transmits a rather high laser power and may show thermal lensing, thermo-refractive noise and photo-thermo-refractive noise. Cryogenic cooling of this mirror is also challenging, and thus thermal noise becomes a general problem. Here, we theoretically investigate an all-reflective coupling scheme of two optical cavities based on a 3-port diffraction grating. We show that power-recycling of a high-finesse arm cavity is possible without transmitting any laser power through a substrate material. The power splitting ratio of the three output ports of the grating is, surprisingly, noncritical.

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 Dates: 2010-04-132010
 Publication Status: Published in print
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 Identifiers: arXiv: 1004.2141
DOI: 10.1364/OE.18.009119
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Title: Optics Express
Source Genre: Journal
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Publ. Info: Washington, DC : Optical Society of America
Pages: - Volume / Issue: 18 (9) Sequence Number: - Start / End Page: 9119 - 9132 Identifier: Other: 954925609918
Other: 1094-4087