论文部分内容阅读
光盘产品的发展趋势和光盘存贮系统的发展趋势反映了光盘存贮技术的发展趋势。 1、光盘产品的发展趋势。 光盘产品的发展主要集中在进一步提高光盘的存贮密度、数据传输率和存取速度方面。 在提高光盘存贮密度方面:(1)通过对存贮介质的材料加以改进,提高存贮介质的敏感性,降低对写激光能量的要求,以更高的分辨力,提高存贮密度。(2)半导体激光器沿着小波长、大功率、多光束方向发展。(3)改善光盘驱动器伺服系统的控制精度和动态性能,研究新的控制手段、控制元件和控制方法。光盘存贮密度的提高,必然导致光盘存贮容量的增加,有人估计,到90年代中叶,5.25英寸光盘存贮容量将达到5000兆字节。
The development trend of optical disc products and the development trend of optical disc storage systems reflect the development trend of optical disc storage technologies. 1, CD-ROM product development trend. The development of optical disc products mainly focuses on further improving the storage density, data transmission rate and access speed of optical discs. In improving the storage density of optical discs: (1) By improving the storage medium material, improve the sensitivity of the storage medium, reduce the write laser energy requirements, with higher resolution, improve storage density. (2) semiconductor lasers along the small wavelength, high power, multi-beam direction. (3) Improve the control accuracy and dynamic performance of optical disc drive servo system, research new control methods, control components and control methods. The increase in the storage density of optical disks will inevitably lead to an increase in the storage capacity of optical disks. It is estimated that the 5.25-inch optical disk storage capacity will reach 5,000 megabytes by the mid-1990s.