Can light cats be photoelectric converters?

That photoelectric converter should be part of the optical cat. Generally, cats use wires, which directly process electrical signals, and light is different. First of all, we must use photoelectric converter to convert optical signals into electrical signals, and then process the electrical signals. Photoelectric converter is a device similar to baseband modem (digital modem), but different from baseband modem, it is connected with optical fiber line and optical signal. Gigabit optical fiber transceiver (also known as photoelectric converter) is a fast Ethernet with data transmission rate of 1Gbps. It still adopts CSMA/ CD access control mechanism and is compatible with existing Ethernet.