Firstly, the sfp28 optical module transmits light through 80 km optical fiber, then it is amplified by optical fiber amplifier, then it passes through dispersion compensation module and adjustable attenuator, finally it enters the receiving end of sfp28 optical module. When the receiving power is less than - 10dBm, the error rate of optical module in optical communication is far lower than 10-12, and it has passed the test successfully.
25g DWDM sfp28 long distance transmission successfully provides a new low-cost solution for customers. Generally, when the transmission distance of 25g rate is more than 40km, coherent optical transmission is needed, but the price of coherent optical module is very expensive. The price of sfp28 optical module is far lower than that of coherent optical module. Even considering fiber amplifier and dispersion compensation module, the scheme of 25g DWDM sfp28 + optical amplifier + dispersion compensation still has a huge cost advantage.
In order to welcome the 5g era, there are also the following products:
SFP28 SR、LR、ER
SFP28 Bidi 10km、30km
sfp28 CWDM 12 wave 1270 ~ 13701470 ~ 1570
LAN WDM 9 wavelength
The 25g sfp28 series of products have achieved mass production with stable performance and high cost performance, which can meet the needs of customers in different application scenarios.
