Are optical modules divided into receiver and transmitter
An optical module typically consists of an optical transmitter (TOSA, Transmitter Optical Sub-Assembly, containing a laser diode), an optical receiver (ROSA, Receiver Optical Sub-Assembly, containing a photodetector), functional circuits, and optical (electrical) interfaces. Typically, the detector is characterized by a level of sensitivity to impinging optical power. A transmitter converts an electrical data signal into an optical (or radio) signal and launches that energy into the physical medium. The optical fiber communication module mainly includes transmitter module like PS-FO-DT as well as receiver module like PS-FO-DR.
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