4×4 Signal router based on electro-optic effect of Mach-Zehnder interferometer for wavelength division multiplexing applications

Optical routing is a novel method of creating transparent optical connections between network nodes using a flow-based approach. The speed of the electrical component is major constraint in high speed communications. To overcome this constraint electrical components are now getting replaced by optical components. In this paper, a 4×4 signal router using Mach-Zehnder interferometers (MZIs) has been proposed. The Mach-Zehnder Interferometer (MZI) structures, working on the principle of electro-optic effect, show the powerful ability to switch the optical signal from one output port to the other output port. The paper constitutes the mathematical description of proposed device. The study is carried out by simulating the proposed device with the beam propagation method (BPM).