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arXiv 1410.2887cond-mat.mtrl-scics.ET
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用于光互连检测的Laser感生磁化抑制

Laser Induced Magnetization Reversal for Detection in Optical Interconnects

Zubair Al Azim, Xuanyao Fong, Thomas Ostler, Roy Chantrell, Kaushik Roy

摘要:

光互连已经成为取代电互连的最前沿技术,特别是在片外通信方面。然而,光互连的一个主要缺点是在接收器处需要光电探测器和放大器,通常由直接带隙半导体和模拟CMOS电路实现,导致大的能量消耗和缓慢的操作时间。在这篇文章中,我们提出了一种新的光学互连架构,使用磁隧道结(MTJ)在接收端,是由飞秒激光脉冲切换。MTJ的状态可以使用简单的数字CMOS锁存器来感测,从而显著改善能耗。此外,MTJ中的磁化可以在皮秒时间尺度上切换,并且我们的设计可以在单个链路上以5 Gbits/sec的速度操作。

英文摘要:

Optical interconnect has emerged as the front-runner to replace electrical interconnect especially for off-chip communication. However, a major drawback with optical interconnects is the need for photodetectors and amplifiers at the receiver, implemented usually by direct bandgap semiconductors and analog CMOS circuits, leading to large energy consumption and slow operating time. In this article, we propose a new optical interconnect architecture that uses a magnetic tunnel junction (MTJ) at the receiver side that is switched by femtosecond laser pulses. The state of the MTJ can be sensed using simple digital CMOS latches, resulting in significant improvement in energy consumption. Moreover, magnetization in the MTJ can be switched on the picoseconds time-scale and our design can operate at a speed of 5 Gbits/sec for a single link.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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