Wavelength-selective filter based on a hollow optical waveguide |
| |
Authors: | Chiu Hua-Kung Chang Chung-Hsing Hou Chia-Hung Chen Chii-Chang Lee Chien-Chieh |
| |
Affiliation: | Department of Optics and Photonics, National Central University, Jhongli 32001, Taiwan. |
| |
Abstract: | In this paper, we describe a theoretical and experimental study of a wavelength-selective filter derived from hollow optical waveguides composed of Bragg reflectors with defect layers on a silicon substrate. The defect states of the transmission filter at wavelengths of 1519 and 1571 nm were realized using one-dimensional photonic crystals (1D PCs) formed from a-Si and SiO(2). The transmission spectra of the filter waveguides and the band structure of the defect 1D PCs were calculated using the two-dimensional finite-difference time-domain and transfer matrix methods, respectively. The device exhibited the narrow bandwidths of 0.5 and 1.1 nm for wavelengths of 1571 and 1519 nm, respectively. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|