Asymmetric coherent photon tunneling filter in an optical waveguide structure |
| |
| Authors: | W Li S M Sadeghi |
| |
| Institution: | (1) Department of Chem. & Engineering Physics, University of Wisconsin, Platteville, WI 53818, USA;(2) Department of Electrical and Computer Engineering, McMaster University, Hamilton, ON, Canada, L4B 1E4;(3) Present address: Department of Physics, University of Alabama in Huntsville, Huntsville, AL 35899, USA |
| |
| Abstract: | Based on the well-known electron coherent tunneling phenomenon, by simulation, a photonic tunneling filter fabricated in an
optical waveguide is proposed. The Bragg grating structure is applied as the photonic barrier. Two photonic barriers confine
a coherent resonance cavity or photon-quantum-well. We report an asymmetric-barrier structure with opposite phase. In this
configuration, the central tunneling wavelength is exactly the same as the Bragg wavelength of the grating, independent of
the photon-quantum-well dimension. The photon-quantum-well length can be adjusted to make the tunneling peak interval fall
to a desired spacing. The photon barrier length is responsible for the filter bandwidth. As an application, an asymmetric
grating photon tunneling filter with International Telecommunication Union grid is demonstrated. |
| |
| Keywords: | Optical filter Photon tunneling Bragg grating Simulation |
| 本文献已被 SpringerLink 等数据库收录！ |
|
