An optical modules typically integrates an optical transmitting device (TOSA, with a laser), an optical receiving device (ROSA, with a photodetector), functional circuits, a main control circuit board (PCBA), a housing, and optical (electrical) interfaces, among other. An optical modules typically integrates an optical transmitting device (TOSA, with a laser), an optical receiving device (ROSA, with a photodetector), functional circuits, a main control circuit board (PCBA), a housing, and optical (electrical) interfaces, among other. An optical module usually consists of an optical transmitting device (TOSA, including a laser), an optical receiving device (ROSA, including a photodetector), functional circuits,main control circuit board (PCBA), housing and optical (electrical) interface and other components. How do optical. Instead, they are complex systems composed of multiple high-speed electrical ICs, optoelectronic devices, and control chips. Due to different data rates (10G/25G/100G/400G/800G/1. 6T), the chip combinations vary, but the overall architecture remains relatively consistent and can be classified into. Optical module chips are core components of optical communication systems. Optical devices: Chips (lasers, detectors) and optical elements (lenses, isolators). Wavelength: Must match the transmitter (e.