SFP BIDI 20km Optical Module PIN 2.5G SMF Optical Module Transceiver DFB DOM LC UPC
Optical module is a general designation of various module categories, including: optical receiving module, optical transmitting module, optical transceiver integrated module and optical forwarding module.
Optical modules work in the physical layer, which is the bottom layer of OSI model. Its function is very simple, that is to achieve photoelectric conversion. Turn an optical signal into an electrical signal and an electrical signal into an optical signal.
An optical module is usually composed of optical emission device (Tosa, including laser), optical receiving device (Rosa, including photodetector), functional circuit and optical (Electrical) interface.
In the transmitter, the driver chip processes the original electrical signal, and then drives the semiconductor laser (LD) or light emitting diode (LED) to emit the modulated optical signal.
At the receiving end, after the optical signal comes in, it is converted into an electrical signal by the light detection diode, and the electrical signal is output after the preamplifier.
SFP BIDI 20km Optical Module PIN
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