@inproceedings{12a2b8a037f748e9867bc3925052e041,
title = "Optical interconnects for multiprocessors in computer backplane",
abstract = "Optical interconnects have potential advantage over electrical methods at the backplane level. In this paper we present a free- space optical connection cube for backplane interconnect applications. The connection cube has a symmetric structure which reduces skew between boards. It can be expanded into a 3- dimensional configuration for parallel communication using vertical-cavity surface-emitting laser (VCSEL) and receiver arrays. Fan-out and fan-in of propagation beams for the connection cube are realized using volume holographic optical elements formed in dichromated gelatin (DCG) emulsion. A four- port communication system has been demonstrated using the connection cube and tested at 500 MHz. In this paper, advantages and detailed implementation of the free-space optical connection cube are presented. Design considerations for fan-out/in holographic gratings and alignment tolerances for the connection cube are discussed. Characteristics of the connection cube are also presented.",
author = "Kim, {Tae J.} and Tu, {Kun Yii} and Darrell Ramsey and Oh, {Tchang Hun} and Kostuk, {Raymond K.}",
year = "1995",
language = "English (US)",
isbn = "0819417475",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "Society of Photo-Optical Instrumentation Engineers",
pages = "192--203",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",
note = "Optoelectronic Interconnects III ; Conference date: 08-02-1995 Through 09-02-1995",
}