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Acousto-optic parallel read/write head for optical disk data storage

机译:声光并行读写头,用于光盘数据存储

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Parallel read and write of optical disks has traditionally used a static grating for read or a linear array of independent lasers for read and write. Depending on the implementation, these systems suffer from coherent cross talk, excessive space between spots, and an inability to independently track. We show that a dynamic acousto-optic grating can generate multiple parallel read/write spots on the disk, each of which can be independently modulated and tracked and all of which are incoherent in less that a bit period. The resulting disk pickup can potentially reach gigabit per second transfer rates with only a modest increase in the drive complexity.
机译:光盘的并行读取和写入传统上使用静态光栅进行读取或使用独立激光器的线性阵列进行读取和写入。取决于实现方式,这些系统遭受相干串扰,斑点之间的空间过大以及无法独立跟踪的困扰。我们表明,动态声光光栅可以在磁盘上生成多个并行的读/写点,每个点都可以独立调制和跟踪,并且所有这些点在不到一个比特周期内都是不相干的。最终的磁盘拾取可能仅在驱动器复杂性仅适度增加的情况下达到每秒千兆比特的传输速率。

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