A simplified computational model for super resolution effect in optical discs is proposed and simulations are
compared with experimental results, providing basic understanding of this phenomenon. Simulations show that
resolution beyond the diffraction limit is achieved and signal destruction occurs at some frequencies when the
super resolution layer is activated.
KEYWORDS: Signal to noise ratio, Optical filters, Super resolution, Digital filtering, Error analysis, Adaptive optics, Linear filtering, Optical tracking, Nonlinear filtering, Channel projecting optics
Optical channel properties of InSb-based super-resolution disc systems are estimated using an adaptive Volterra filter.
Channel characteristics for minimum mark lengths of 80 and 60 nm and track pitches of 320 and 260 nm are presented.