Abstract
Nonreciprocal couplers in gyrotropic materials offer a new possibility for the realization of integrated optical isolators and circulators. This paper presents a theoretical analysis of such devices. We apply the finite-difference method and coupled mode as well as normal mode theory to neighbouring gyrotropic rib waveguides. Conclusions for the design of nonreciprocal devices are drawn.
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Erdmann, A., Hertel, P. & Dötsch, H. Nonreciprocal coupling effects in gyrotropic waveguide structures. Opt Quant Electron 26, 949–955 (1994). https://doi.org/10.1007/BF00708336
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DOI: https://doi.org/10.1007/BF00708336