Open AccessPropagation properties of light in multimode photonic crystal waveguides with triangular lattices based on total internal reflection
Author(s) -
Jun Zhang,
Yu Tian-Bao,
Nian-Hua Liu,
Liao Qing-Hua,
Lingjuan He
Publication year - 2011
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.60.104217
Subject(s) - optics , photonic crystal , planar , materials science , total internal reflection , refractive index , wavelength , reflection (computer programming) , multi mode optical fiber , dielectric , hexagonal lattice , photonics , bandwidth (computing) , optoelectronics , physics , optical fiber , telecommunications , computer science , programming language , condensed matter physics , computer graphics (images) , antiferromagnetism
The properties of the propagating field in multimode photonic crystal waveguides exhibiting no photonic band gaps with triangular lattices are investigated. By the effective refractive index method, these structures are regarded as three layer planar dielectric waveguides. And the multimode interference effect is numerically analyzed and simulated based on the self-imaging principle. The results show that the field can propagates effectively and resembles index-guided mode due to the combination of total internal reflection and distribution Bragg reflection. High transmission region shifts toward the shorter wavelength region, the bandwidth and the transmissivity increase with the increase of filling ratio, which provides a theoretical reference for selecting an appropriate filling ratio in practical applications.