Comprising the following steps: a protective sleeve, a photoelectric unit and a shell; the shell wraps the photoelectric unit; the photoelectric unit comprises a PCB, a jumper unit, a lens unit and an optical fiber wire; one end of the jumper unit is connected with the. Comprising the following steps: a protective sleeve, a photoelectric unit and a shell; the shell wraps the photoelectric unit; the photoelectric unit comprises a PCB, a jumper unit, a lens unit and an optical fiber wire; one end of the jumper unit is connected with the. The working principle of optical modules is illustrated in the diagram shown in the Optical Module Working Principle Diagram. The transmitting interface inputs electrical signals of a certain bit rate, which are then processed by internal driver chips. The optical module is a very important component in an optical communication system. Whether you are creating a 100-Gbps or 400-Gbps, small form-factor pluggable (SFP) module, SFP+ transceiver, XFP module, CFP, X2/XENPAK module. TOSA is used to realize the electro-optical conversion in the optical module, the built-in devices include optical laser, MPD, TEC, isolator, MUX, coupling lens, and so on. It is available in TO-CAN, Gold-BOX, COC (chip on chip), COB (chip on board), and other packaging forms.