Optical module SoC (System on Chip) is a key component in the field of optical communication, which plays a vital role in realizing efficient and stable optical communication. Optical modules typically have an electrical interface on the side that connects to the inside of the system and an optical interface on the side that connects to the outside. A System-on-Chip (SoC) is essentially an entire computer squeezed into one integrated circuit. All the essential components – CPU, memory, input/output interfaces, sometimes even wireless radios – reside on a single piece of silicon. Optical module SoC chip is a highly integrated chip, which integrates several modules with different functions on one chip. ESP32 is a series of low cost, low power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. The ESP32 series employs either a Tensilica Xtensa LX6, Xtensa LX7 or a RiscV processor, and both dual-core and single-core variations are available. It includes in-built. This is where understanding different semiconductor packaging technologies – System-in-Package (SiP), Package-on-Package (PoP), System-on-Chip (SoC), and System-on-Module (SoM) – becomes crucial.