Improved method for estimating the minimum length of modal filters fabricated for stellar interferometry
Improved method for estimating the minimum length of modal filters fabricated for stellar interferometry
We present an improved theoretical model to estimate the minimum fiber length required for achieving a desired degree of wavefront filtering in stellar interferometry. The proposed model is based on modal analysis of the fiber and is compared with numerical results obtained through the beam propagation method as well as with reported experimental observations. We also study the effect of introducing a spatial filter at the output end of the fiber and show that the required fiber length can be reduced significantly by introducing a circular aperture of optimum radius after the fiber.
1935-1946
Dasgupta, Sonali
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Broderick, N.G.
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Richardson, David J.
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Lewi, Tomer
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Katzir, Abraham
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2 February 2009
Dasgupta, Sonali
43e5e81a-3da3-4ba5-a5f4-2abe6301fc71
Broderick, N.G.
1b3f7d34-4fd4-4ec5-9b90-c3cfb176f757
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Lewi, Tomer
9a1309e7-d883-4df5-a394-23f132236c73
Katzir, Abraham
11f5de98-1432-4d21-9087-6a0d938f3baf
Dasgupta, Sonali, Broderick, N.G., Richardson, David J., Lewi, Tomer and Katzir, Abraham
(2009)
Improved method for estimating the minimum length of modal filters fabricated for stellar interferometry.
Optics Express, 17 (3), .
(doi:10.1364/OE.17.001935).
Abstract
We present an improved theoretical model to estimate the minimum fiber length required for achieving a desired degree of wavefront filtering in stellar interferometry. The proposed model is based on modal analysis of the fiber and is compared with numerical results obtained through the beam propagation method as well as with reported experimental observations. We also study the effect of introducing a spatial filter at the output end of the fiber and show that the required fiber length can be reduced significantly by introducing a circular aperture of optimum radius after the fiber.
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Published date: 2 February 2009
Identifiers
Local EPrints ID: 65821
URI: http://eprints.soton.ac.uk/id/eprint/65821
ISSN: 1094-4087
PURE UUID: eecc5c42-1bcd-4f8b-9b05-d4610e16f6be
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Date deposited: 20 Mar 2009
Last modified: 14 Mar 2024 02:34
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Contributors
Author:
Sonali Dasgupta
Author:
N.G. Broderick
Author:
Tomer Lewi
Author:
Abraham Katzir
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