A novel technique for an integrated optical wavelength demultiplexer
Lotfy Rabeh, M., Mohanna, M., Hosny, T., Gabr, M. (2015). A novel technique for an integrated optical wavelength demultiplexer. EKB Journal Management System, 4(2), 179-184. doi: 10.1016/j.nrjag.2015.08.002
M. Lotfy Rabeh; M. Mohanna; Tarek Hosny; Mohamed I. Gabr. "A novel technique for an integrated optical wavelength demultiplexer". EKB Journal Management System, 4, 2, 2015, 179-184. doi: 10.1016/j.nrjag.2015.08.002
Lotfy Rabeh, M., Mohanna, M., Hosny, T., Gabr, M. (2015). 'A novel technique for an integrated optical wavelength demultiplexer', EKB Journal Management System, 4(2), pp. 179-184. doi: 10.1016/j.nrjag.2015.08.002
Lotfy Rabeh, M., Mohanna, M., Hosny, T., Gabr, M. A novel technique for an integrated optical wavelength demultiplexer. EKB Journal Management System, 2015; 4(2): 179-184. doi: 10.1016/j.nrjag.2015.08.002

A novel technique for an integrated optical wavelength demultiplexer

NRIAG Journal of Astronomy and Geophysics
Volume 4, Issue 2, December 2015, Pages 179-184    PDF (1.52 M)
DOI: 10.1016/j.nrjag.2015.08.002
Authors
M. Lotfy Rabeh; M. Mohanna; Tarek Hosny; Mohamed I. Gabr
Abstract
In this paper we propose a new technique for optical wavelength demultiplexing (DEMUX) relaying on two phenomena: Goos–Haenchen (GH) shift and continuous refraction at a graded-index medium interface. In the first case, two light beams are totally reflected at a plane interface separating two dielectric lossless media. The reflected beams suffer different lateral shifts (GH shifts) depending on the wavelength; thus accomplishing the required spatial beam separation. In the second case, the two light beams have different “turning points” inside the graded index medium; hence, the “back-refracted” beams are spatially separated. In this paper, we optimized the conditions of operation of such demultiplexing technique. This makes possible the integration of such technique in “planar integrated-optics” structures which can be used reliably in optical fiber communication networks.
Keywords
Laser; Demultiplexing
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