Designing of efficient optical waveguide using magnetic photonic crystal for communication application

In the present research, a one-dimensional photonic crystal waveguide is designed and realized by using a magnetic photonic crystal structure and transfer matrix method. The principle of investigation of efficiency relies on the absorption, reflection and transmission parameters, whereas the characteristics of such structure depend on the nature of the lattice, the configuration of the waveguide along the input signal. The current studies focus on the computational efficiency concerning the wavelengths which varies from visible to infrared region. Moreover, the backbone of the work is the variation of the filling factor of copper–yttrium iron garnet (Cu–YIG) magnetic material for different permeability and permittivity of the substance. Further focusing on the result, it is realized that the efficiency corresponding to the filling factor of 0.6 provides paramount outcomes as compared to 0.7 and 0.8. Apart from this, the paper makes a thorough study of different aspects of the waveguide such as efficiency investigation for a wide range of wavelength regions. Finally, it is envisaged that the transmitted efficiency is nearly equal to 100% for the entire wavelength about the filling factor 0.6, where the maximum efficiency is 95% in the case of the filling factor 0.7 and 90% for the 0.8 filling factor. To summarize the above-mentioned statements, more filling factor obstructs more signals and passes fewer signals through the magnetic photonic crystal.