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|Title||Metallic nonlinear magnetooptical nonreciprocal isolator|
In advanced optical fiber communication systems where reflection light might cause degradation of the signal quality, optical waveguide isolators play an important role. The effect of a metal layer with negative permittivity on the behavior of nonlinear-magnetooptic isolator is studied. The isolator consists of metal film, nonlinear cladding, and magnetooptic substrate. It is found that difference between forward and backward propagation for TM0 mode increases with increasing the absolute value of the tuning parameter which is the permittivity of the metal film, ɛf. It is also found that the maximum cut-off thickness of the isolator occurs in self-defocusing case around η = 0.65 and at the highest assumed value of ɛf = −8. These results are helpful in fabricating an isolator with high performance.
|Published in||Optik-International Journal for Light and Electron Optics|
|Series||Volume: 122, Number: 3|
|Publisher||Urban & Fischer|
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