| 摘要 |
The disclosure is about a method for producing a quality of transmission estimator for optical transmissions, comprising:
-defining a local dispersion value,
-defining a dispersion increment (14),
-performing a propagation calculation along an elementary section being a propagation medium characterized by the local dispersion value, an elementary section length corresponding to the dispersion increment (14) and wherein the optical signal which is incoming in the elementary section is previously affected by a cumulative dispersion value (D 1 to D 6 ) equal to the integer number of the dispersion increment,
-for each elementary section, determining a variance of noise, the noise representing a distortion due to Kerr nonlinear field contributions in the elementary section,
-for each couple of elementary sections, determining a covariance of noise between the couple of elementary sections,
-storing in a data repository a look-up table comprising the variances and covariances. The disclosure also provides a quality of transmission estimator device. |
