We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
COUPLING EFFICIENCY OF METAMATERIAL MAGNETOOPTICAL INTEGRATED ISOLATOR.
- Authors
EL-KHOZONDAR, HALA J.; EL-KHOZONDAR, RIFA J.; SHABAT, MOHAMMED M.
- Abstract
Nonreciprocal devices such as isolators are well-known in light wave communication systems. The integrated optical isolator is presented where the magnetic field modes propagate perpendicular to the in-plane magnetization of a planar magnetooptical waveguide. The cladding and film of optical isolator are made of magnetic materials with magnetization adjusted to be parallel to their plan. The substrate is filled with new artificial metamaterials (MTMs). The dispersion equation of the transverse magnetic (TM) fields is derived. The difference Δβ between the phase constant for forward and backward propagation is calculated numerically for different values of MTMs permittivity (εs) and permeability (μs). Results show that the cutoff thickness is different for forward and backward propagation and varies with the MTMs parameters. The cutoff thickness of the isolator is selected such that the coupling coefficients of the isolator with optical fiber are obviously different for forward and backward propagation.
- Subjects
METAMATERIALS; MAGNETOOPTICS; FERROMAGNETISM; FERRITE isolators; WAVEGUIDES
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2009, Vol 23, Issue 22, p4675
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979209053655