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Nonlinear cut-off integrated optical isolator

Gniadek K.

Opto-Electronics Review

2005

Vol. 13, No. 2

147-150

The paper presents a concept of an integrated isolator which operation combines the magnetooptic nonreciprocity and nonlinear effects. The isolator is based on nonreciprocal cut-off of TM modes in magnetooptical planar structure where one layer (e.g. top one) is nonlinear. The power dependence of the propagation constants in such configuration allows for easy control of the nonreciprocal behaviour of the counterpropagating TM modes and nonreciprocal cut-off thickness.