提高单面双层BD光盘容量的信号处理技术

Signal processing for increasing density of double-layer Blu-ray disc

一、引言随着蓝光光盘(BD和HD DVD)技术的不断成熟,单盘单层15GB～25GB和单盘双层30GB～50GB的蓝光光盘产品已经进入市场。但与此同时,其他各种新的光存储技术也在飞速发展,例如近场记录、全息记录和超分辨记录都可能成为第四代光存储产品。在这种形势下,蓝光光盘技术也需要不断挑战更大的存储容量。近年来,韩国的三星电子公司在这方面取得了突破性的进展,成功开发了容量可达66GB的单盘双层BD光盘信号处理技术。下面我们将对这一技术进行简要的介绍。

This paper introduces an increasing area density with applying novel signal processing and pulse erasing writing strategy on the Blu-ray Disc (BD) dual-layer optical disc.The feasibility for recording 66GB and 70GB per disc has been demonstrated.As a result,applied technologies can increase recording density by 30% with commercially available BD discs.