For example, for scenarios that only need to receive optical signals, the optical module only needs a receiver, so there are single-receiver modules and double-receiver modules ; For scenarios that only need to transmit optical signals, the optical module only. For example, for scenarios that only need to receive optical signals, the optical module only needs a receiver, so there are single-receiver modules and double-receiver modules ; For scenarios that only need to transmit optical signals, the optical module only. An optical module is a typically hot-pluggable optical transceiver used in high-bandwidth data communications applications. 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. After the processing, the drive's semiconductor laser diode (LD) or light emitting diode (LED) emits modulated optical signals at the corresponding rate. Whether in 5G base stations, hyperscale data centers, or long-haul telecom networks, these modules convert electrical signals into optical ones — and back again — to ensure fast, stable, and.