Proc. SPIE. 5643, Advances in Optical Data Storage Technology
KEYWORDS: Signal to noise ratio, Detection and tracking algorithms, Sensors, Remote sensing, Computer programming, Signal processing, Optical recording, Medium wave, Optical storage, Photochromic materials
Multi-wavelength storage is an approach to increase the memory density with the problem of crosstalk to be deal with. We apply Low Density Parity Check (LDPC) codes as error-correcting codes in photochromic dual-wavelength optical storage based on the investigation of LDPC codes in optical data storage. A proper method is applied to reduce the crosstalk and simulation results show that this operation is useful to improve Bit Error Rate (BER) performance. At the same time we can conclude that LDPC codes outperform RS codes in crosstalk channel.