Maximum Transmission Distance = Link Budget ÷ Attenuation Value of Fiber per Unit Length at the Module's Emission Wavelength Where: Link Budget = Minimum Transmit Optical Power − Receive Sensitivity (Unit: dB) Figure 1 Attenuation Diagram of Different Wavelengths Transmitted in. Maximum Transmission Distance = Link Budget ÷ Attenuation Value of Fiber per Unit Length at the Module's Emission Wavelength Where: Link Budget = Minimum Transmit Optical Power − Receive Sensitivity (Unit: dB) Figure 1 Attenuation Diagram of Different Wavelengths Transmitted in. The wavelength and transmission distance are important parameters of optical modules, and the transmission distance varies with different wavelengths. So, what is the relationship between wavelength and transmission distance? Is wavelength a factor affecting the transmission distance of optical. In reality, SFP transmission distance is defined by optical design—not data rate. An SFP (Small Form-factor Pluggable) module transmits data over fiber using specific wavelengths and power levels, which directly influence how far the signal can travel before degradation occurs. Among them, long-distance optical modules refer to optical modules with a transmission.
