What are the main functions and functions of the SFP optical module?

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[ Date Time : 2019/2/19 14:40:21 ] [ Comments : 0 ]

What are the main functions and functions of the SFP optical module?

The main function of the optical module is to provide opto-electro-optical conversion capability. It consists of two parts: the transmitting part and the receiving part. The transmitting part converts the electrical signal into an optical signal, and the receiving part converts the optical telecommunication into an electrical signal.

The transmitting part is: inputting a certain bit rate of electric signal and driving the semiconductor laser (LD) or light emitting diode (LED) to emit a corresponding rate of modulated optical signal after being processed by an internal driver chip, and an internal optical power automatic control circuit is provided therein. The output optical signal power remains stable.

The receiving part is: After a certain code rate of the optical signal input module is converted into an electrical signal by the light detecting diode. After the preamplifier, the corresponding rate of the electrical signal is output.

The main functions of the optical module are as follows:

(1) As an optical interface receives and emits light signals, and optical fiber, pigtail docking;

(2) The light signal is introduced into the light plate and processed in the light plate;

(3) The reason why the optical module is used on the optical board rather than directly fixing the optical interface on the optical module is that the adoption of the optical module can ensure that the optical module can adapt to various optical interfaces when adopting various pigtail connections of SC, FC and LC. Can be solved by replacing the corresponding optical module;

(4) Easy replacement when the optical module is bad.