optical module output optical power

The Output Power refers to the average output optical power of the light source at the sending end of the optical module, also known as the output optical power, which can be understood as the intensity of light.

Formula: P(dBm)=10Log(P/1mW)

The unit is W or mW or dBm. (Where W or mW is a linear unit and dBm is a logarithmic unit.) In communication, we usually use dBm to represent optical power.

The greater the value of optical power, the greater the energy intensity of optical power emission. But that doesn’t mean more light power is better. Each optical device has a fixed overload optical power, and too much optical power will increase the code error. The optical power of the general SFP module is between -2 and -13dbm, and the value range will also change with the number of transmission kilometers.

There is overload optical power and sensitivity (the lowest optical power communication value). When the transmitted optical power is too small, the received optical power at the receiving end of the module is smaller than the receiving sensitivity of the module, and the module cannot receive signal light normally

When the transmitted light power is too large, although the received light power range at the receiving end of the module can be reached by increasing the attenuator, the required bias current will be too large, which will affect the transmission quality of the signal and the service life of the module.

The above is the explanation of the optical module output optical power brought by Shenzhen HDV Phoelectron Technology LTD. The module products produced by the company cover fiber module, Ethernet module, fiber transceiver module, fiber access module, SSFP optical module, SFP optical module and so on. The above module class products can provide support for different network scenarios. For the above products, it is paired with a professional and strong R & D team to provide technical support for customers, and a thoughtful and professional business team to provide quality service for customers in the early consultation and later work.