title: Holographic filter with cascaded volume Bragg gratings in photopolymer waveguide film.
abstract: A novel holographic filter using a photopolymer-based cascaded volume Bragg gratings (CVBGs) is proposed and experimentally demonstrated in this paper. The filter was designed to attain a narrow spectral bandwidth characteristic without increasing the thickness of photopolymer used, at 1550 nm operating wavelength region. The proposed filter is consisted of a 45° slanted grating working as a surface-normal input/output coupler and a non-slanted reflection grating acting as a narrow-band wavelength selective filter, and it was embedded in the photopolymer film as a waveguide mode. The fabricated filter showed that the bandwidth at the center wavelength of 1547.85 nm was about 0.45 nm.
authors.affiliation: Department of Electronic Engineering, Sunchon National University, 315 maegok-dong, Sunchon, Jeonnam 540-742, South Korea. kwonyeon@sunchon.ac.kr
authors.forename: Kwon-Yeon
authors.initials: KY
authors.lastname: Lee
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006696:Holography / Q000295:instrumentation*; D008027:Light; D008567:Membranes, Artificial; D008962:Models, Theoretical; D011108:Polymers / Q000737:chemistry* / Q000528:radiation effects; D012031:Refractometry / Q000295:instrumentation*
chemical_list: D008567:Membranes, Artificial; D011108:Polymers