Multilayered Waveguides with an Embedded Gyrotropic Layer
نویسنده
چکیده
The material in the resonant layer (RL) of ‘f.1’ consists of nanometer-sized iron particles in an InGaAsP host layer above the InP p-cladding a common 1.55 m multi-quantum well (MQW) laser structure as shown in Table III. InGaAsP has a refractive index of 3.4 which is higher than the refractive index of the InP pclad which is 3.16. These values satisfy the need to have the real part of the refractive index of the FC layer to be greater than the effective index of the mode. As a starting design for an integrated isolator, the thickness of the FC layer is required to be greater than the cutoff thickness of 0.22 m, and therefore, a thickness of 0.413 m is chosen. The volume fraction of Fe in the InGaAsP host is 0.020 (2 %) and the reduction factor of the imaginary part of the complex refractive index is 1/30[1].
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