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Proceedings Paper

MEMS-based beam-steerable FSO communications for reconfigurable wireless data center
Author(s): Peng Deng; Mohsen Kavehrad; Yan Lou
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Paper Abstract

Flexible wireless datacenter networks based on free space optical communication (FSO) links are being considered as promising solutions to meet the future datacenter demands of high throughput, robustness to dynamic traffic patterns, cabling complexity and energy efficiency. Robust and precise steerable FSO links over dynamic traffic play a key role in the reconfigurable optical wireless datacenter inter-rack network. In this work, we propose and demonstrate a reconfigurable 10Gbps FSO system incorporated with smart beam acquisition and tracking mechanism based on gimballess two-axis MEMS micro-mirror and retro-reflective film marked aperture. The fast MEMS-based beam acquisition switches laser beam of FSO terminal from one rack to the next for reconfigurable networks, and the precise beam tracking makes FSO device auto-correct the misalignment in real-time. We evaluate the optical power loss and bit error rate performance of steerable FSO links at various directions. Experimental results suggest that the MEMS based beam steerable FSO links hold considerable promise for the future reconfigurable wireless datacenter networks.

Paper Details

Date Published: 28 January 2017
PDF: 9 pages
Proc. SPIE 10128, Broadband Access Communication Technologies XI, 1012805 (28 January 2017); doi: 10.1117/12.2253342
Show Author Affiliations
Peng Deng, The Pennsylvania State Univ. (United States)
Mohsen Kavehrad, The Pennsylvania State Univ. (United States)
Yan Lou, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 10128:
Broadband Access Communication Technologies XI
Benjamin B. Dingel; Katsutoshi Tsukamoto; Spiros Mikroulis, Editor(s)

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