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  Eigenmode changes in a misaligned triangular optical cavity

Kawazoe, F., Schilling, R., & Lueck, H. (2011). Eigenmode changes in a misaligned triangular optical cavity. Journal of Optics, 13(5): 055504. doi:10.1088/2040-8978/13/5/055504.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-0878-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-087A-B
Genre: Journal Article
Other : Eigenmode in a misaligned triangular optical cavity (Preprint)

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1010.5677 (Preprint), 525KB
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 Creators:
Kawazoe, Fumiko1, Author              
Schilling, Roland1, Author              
Lueck, Harald1, 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: We derive relationships between various types of small misalignments on a triangular Fabry-Perot cavity and associated geometrical eigenmode changes. We focus on the changes of beam spot positions on cavity mirrors, the beam waist position, and its angle. A comparison of analytical and numerical results shows excellent agreement. The results are applicable to any triangular cavity close to an isosceles triangle, with the lengths of two sides much bigger than the other, consisting of a curved mirror and two flat mirrors yielding a waist equally separated from the two flat mirrors. This cavity shape is most commonly used in laser interferometry. The analysis presented here can easily be extended to more generic cavity shapes. The geometrical analysis not only serves as a method of checking a simulation result, but also gives an intuitive and handy tool to visualize the eigenmode of a misaligned triangular cavity.

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 Dates: 2010-10-272011
 Publication Status: Published in print
 Pages: 17 pages, 21 figures
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 Rev. Method: -
 Identifiers: arXiv: 1010.5677
DOI: 10.1088/2040-8978/13/5/055504
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Title: Journal of Optics
Source Genre: Journal
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Pages: - Volume / Issue: 13 (5) Sequence Number: 055504 Start / End Page: - Identifier: -