This VOA supports low-light conditions, consumes less power, and has a faster switching speed. The silicon-based VOA array device is an all-solid-state chip with a response speed in the hundreds of nanoseconds range. Its eight-channel monolithic integration and low power consumption meet the requirements of optical transmission and optical sensing systems for high-speed response, miniaturization, and high reliability of optical attenuators. Its response speed is four orders of magnitude faster than traditional VOAs, reaching the hundreds of nanoseconds level, making rapid optical power control possible in WDM optical networks. Furthermore, its ultra-low optical loss meets the requirements of civilian optical network applications, its extremely high integration helps to significantly reduce module size, and the pure solid-state waveguide chip ensures excellent reliability.