Wepresent the design and fabrication of a 2 × 2 optical switch based on a Mach-Zehnder Interferometer (MZI) configuration that exhibits high switching performance, enhancing 3 dB bandwidth at low loss. The advance ment of the switch design is to use two thermo-optic phase shifters (TOPSs), which enable precise switching be tween output ports by adjusting the applied voltage. With these two TOPSs, the device overcomes the challenges of thermal crosstalk and improves switching accuracy, ensuring stable operation even with high thermal sensitiv ity. We provide a comprehensive evaluation of the switch's performance, including passive, DC, and AC charac teristics. The DC characterization demonstrates the ability to route signals to different ports based on the applied voltage, while the AC measurement reveals a fast-switching time of approximately 20 μs at the target wavelength of 1548.6 nm. The passive performance exhibits excellent signal integrity with minimal insertion loss (IL) and crosstalk (XT) within the C-band. Furthermore, this design can potentially be expanded into larger configura tions, such as 8 × 8, 16 × 16, and even 64 × 64, by leveraging MMI-based architectures like Banyan and Benes topologies. This scalability makes it an ideal candidate for high-performance, large-scale optical switching net works, where fast switching, low loss, and minimal crosstalk are essential.