Single-polarization hollow-core square photonic bandgap waveguide

Journal Article · Fri Jul 15 04:00:00 EDT 2016 · AIP Advances

DOI:https://doi.org/10.1063/1.4960426· OSTI ID:22611433

Eguchi, Masashi ^[1]; Tsuji, Yasuhide ^[2]

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1. Department of Opto-Electronic System Engineering, Chitose Institute of Science and Technology, Chitose, 066-8655 Japan (Japan)
2. Division of Information and Electronic Engineering, Graduate School of Engineering, Muroran Institute of Technology, Muroran, 050-8585 Japan (Japan)

Materials with a periodic structure have photonic bandgaps (PBGs), in which light can not be guided within certain wavelength ranges; thus light can be confined within a low-index region by the bandgap effect. In this paper, rectangular-shaped hollow waveguides having waveguide-walls (claddings) using the PBG have been discussed. The design principle for HE modes of hollow-core rectangular PBG waveguides with a Bragg cladding consisting of alternating high- and low-index layers, based on a 1D periodic multilayer approximation for the Bragg cladding, is established and then a novel single-polarization hollow-core square PBG waveguide using the bandgap difference between two polarized waves is proposed. Our results demonstrated that a single-polarization guiding can be achieved by using the square Bragg cladding structure with different layer thickness ratios in the mutually orthogonal directions and the transmission loss of the guided mode in a designed hollow-core square PBG waveguide is numerically estimated to be 0.04 dB/cm.

• OSTI ID: 22611433
• Journal Information: AIP Advances, Journal Name: AIP Advances Journal Issue: 7 Vol. 6; ISSN AAIDBI; ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
APPROXIMATIONS
BRAGG CURVE
CLADDING
LAYERS
LOSSES
PERIODICITY
POLARIZATION
THICKNESS
TRANSMISSION
WAVEGUIDES
WAVELENGTHS