Abbreviated Journal Title
Opt. Express
Keywords
DIFFRACTION; GLASS; Optics
Abstract
This work presents the use of longitudinal refractive index modulation (apodization) in photosensitive glass for improved sidelobe suppression in volume holographic optical elements. We develop a numerical model for both uniform and apodized volume holograms based on rigorous coupled-wave analysis. We validate the model by comparison with a transmissive 1.55-mum uniform volume grating in photothermorefractive glass. We then apply our numerical model to calculate the spectral response of apodized gratings. The numerical results demonstrate that apodization of the refractive index modulation envelope improves spectral selectivity and reduces first and second-order side-lobe peaks by up to 33 and 65 dB, respectively. We suggest a method for creating apodization in volume holograms with approximately Gaussian spatial refractive index profile.
Journal Title
Optics Express
Volume
12
Issue/Number
26
Publication Date
1-1-2004
Document Type
Article
Language
English
First Page
6642
Last Page
6653
WOS Identifier
ISSN
1094-4087
Recommended Citation
Tsui, J. M.; Thompson, C.; Mehta, V.; Roth, Jeffrey M.; Smirnov, V. I.; and Glebov, L. B., "Coupled-wave analysis of apodized volume gratings" (2004). Faculty Bibliography 2000s. 4842.
https://stars.library.ucf.edu/facultybib2000/4842
Comments
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