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Beam-width-dependent filtering properties of strong volume holographic gratings

Hsieh, Hung-Te and Liu, Wenhai and Havermeyer, Frank and Moser, Christophe and Psaltis, Demetri (2006) Beam-width-dependent filtering properties of strong volume holographic gratings. Applied Optics, 45 (16). pp. 3774-3780. ISSN 0003-6935.

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The finite dimension of the incident beam used to read out volume holographic gratings has interesting effects on their filtering properties. As the readout beam gets narrower, there is more deviation from the ideal response predicted for monochromatic plane waves. In this paper we experimentally explore beam-width-dependent phenomena such as wavelength selectivities, angular selectivities, and diffracted beam profiles. Volume gratings in both reflection and transmission geometries are investigated near 1550 nm. Numerical simulations utilizing the technique of Fourier decomposition provide a satisfactory explanation and confirm that the spread of spatial harmonics is the main contributing factor.

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Additional Information:© 2006 Optical Society of America Received 4 April 2005; accepted 25 September 2005. This work was supported by the NSF Engineering Research Centers Program for Neuromorphic Systems Engineering under award EEC-9402726.
Subject Keywords:Volume holographic gratings; Holographic optical elements
Issue or Number:16
Record Number:CaltechAUTHORS:HSIao06
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4765
Deposited By: Archive Administrator
Deposited On:06 Sep 2006
Last Modified:02 Oct 2019 23:16

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