Open AccessDesign of polarization band-pass filters based on the theory of thin-film photonic crystal superlattice
Author(s) -
Ping Gu,
Haixing Chen,
Qin Xin,
Xü Liu
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.773
Subject(s) - photonic crystal , materials science , superlattice , transmittance , yablonovite , superposition principle , optoelectronics , optics , polarization (electrochemistry) , optical filter , photonic integrated circuit , wavelength , photonics , physics , chemistry , quantum mechanics
The principle of design of polarization band_pass filters used for wavelength d ivision multiplexing systems is presented. The design method is based on the con cept of thin_film photonic crystal superlattice. Two kinds of design are put for ward. One of them is to construct by superposition of two photonic crystals; and the other is to insert a new photonic crystal into the middle of a photonic cr ystal, so that there are in effect three photonic crystals. Such band_pass filte rs have excellent optical properties with p_polarization transmittance and s_pol arization reflectance. The characteristics of the filters, including peak transm ittance, half_band width and rejection are discussed.