A phase shift electro-optic semiconductor structure that features a Mach-Zehnder Interferometer (MZI) is numerically analyzed. The interferometer structure considers a highly-doped Si-based waveguide that can control the phase shift by varying the refractive index through the carrier concentration while applying a control voltage. To analyze the structure, Kramers-Kronig dispersion relations, the effective index method and the Drude model are implemented within a finite element software. As a result, for an optical waveguide structure with a 9 mm length and 10 V, it is possible to obtain a phase shift by that allows, at the output of the MZI, total interference that is required to modulate an optical communication link.
García-Ramírez, Mario Alberto; González-Reynoso, Orfil; Vargas-Rodríguez, Everardo; Bello-Jiménez, Miguel Angel; and García-Barrientos, Abel
"Numerical Analysis of A Silicon-Based Electro-Optic Modulator,"
Karbala International Journal of Modern Science: Vol. 8
, Article 8.
Available at: https://doi.org/10.33640/2405-609X.3224
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