Non Linear Effects in High Density Optical Recording

This paper presents a preliminary study aiming to define a non-linear model of an high density optical disc read-out process based on the Volterra series. Under high density condition indeed, because of the high linear density and reduced track pitch the signal read-out is not a linear process. To cope with such rather delicate problem, the identification of a suitable non linear model is required. According to the Hopkins analysis, a physical model based on the optical scalar theory was implemented. The results of such analysis have been then used to build up a non-linear analytical model based on the Volterra series. Some encouraging results based on a preliminary draft model are given.

Published

1996-10

Content type

Original Research

DOI

10.5594/M001252

ISBN

978-1-61482-947-8