An optical module is mainly composed of optoelectronic devices (including the optical transmitter and optical receiver), functional circuitry, and optical interfaces. Its fundamental role is to bridge the gap between electrical equipment and optical fibers. 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. The optical module, known as Optical Transceiver in English, is a general term for various module categories, including optical receiver modules, optical transmitter modules, optical transceiver modules, and optical forwarding modules. You'll find its structure carefully engineered to house advanced components that convert electrical. In today's conventional packaging, chips and optical modules are packaged separately and then interconnected externally, which belongs to traditional integrated circuit design. With the application of CPO technology, future systems can be regarded as integrated photonic circuits.
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