| 摘要 |
To transmit a digital signal (DS) over an optical fiber link (SMF), the digital signal is modulated onto an optical carrier (OS) using frequency shift keying modulation at a modulation index of h<0,5. Under the impact of a non-linear transmission effect in the optical fiber, the use of a modulation index h<0,5 leads to an increase in maximum permitted launch power of the optical signal, increased receiver sensitivity and an increased spectral efficiency. <IMAGE> |
