In this paper, we design and experimentally demonstrate a topology-optimized silicon-based dual-mode 4 × 4 electro-optic (EO) switch. Fiber optic switches, multiplexers and demultiplexers block or route optical signals in a fiber optic network. The switches utilize a multimode interference-based Mach-Zehnder interferometer combined with thermo-optic phase. Silicon-based optical switch is one of the key components for on-chip optical interconnect systems, and mode division multiplexing technology has been employed to boost optical switches' channel capacity. However, the majority of the proven multimode optical switches have a switching time in the. Lfiber's optical switches (singlemode/multimode fiber switches) are micro-optic-based, opto-mechanical switches. It works best with Fibertronics Cat6 or Cat 5e Ethernet patch cables. The dual-mode Mach–Zehnder interferometer switch comprises of four p-i-n phase.
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