Abstract

Data centers have become the major technology for collecting, storing, and processing information. The latency requirement for transferring information between servers has become more stringent from year to year as the speed of the new generation of servers increases at an almost exponential pace. In this paper, we propose a new method to compress switching information over data sequence packets using temporal cloaking. The main advantages of this method in comparison to electronic switching or the use of microelectromechanical system technology are that the compression and removal of the switching information are done entirely in the optical domain without increasing the packet duration time, changing or adding overhead bits, reducing the signal-to-noise ratio, or distorting the polarization or the phase of the signal. Only a small delay is added to the signal due to the cloaking process. This method requires tight synchronization; to address this issue, a mathematical model that describes the effect of clock jitter on the system bit error rate performance is derived in this paper. The same concept could also be used to increase the capacity of legacy communication systems as well as in coherent digital communication or analog communication, e.g., radio over fiber.

© 2012 IEEE

Temporal cloaking for data suppression and retrieval

Joseph M. Lukens, Andrew J. Metcalf, Daniel E. Leaird, and Andrew M. Weiner
Optica 1(6) 372-375 (2014)

Dimensioning of 112G Optical-Packet-Switching-Based Interconnects for Energy-Efficient Data Centers

Bárbara Dumas Feris, Philippe Gravey, Pascal Morel, Marie-Laure Moulinard, Michel Morvan, and Ammar Sharaiha
J. Opt. Commun. Netw. 9(4) B124-B136 (2017)

High-port low-latency optical switch architecture with optical feed-forward buffering for 256-node disaggregated data centers

Nikos Terzenidis, Miltiadis Moralis-Pegios, George Mourgias-Alexandris, Konstantinos Vyrsokinos, and Nikos Pleros
Opt. Express 26(7) 8756-8766 (2018)

P-Torus: wavelength-based switching in packet granularity for intra-data-center networks

Charidimos Chaintoutis, Adonis Bogris, and Dimitris Syvridis
J. Opt. Commun. Netw. 11(9) 491-500 (2019)

Scalable and low server-to-server latency data center network architecture based on optical packet inter-rack and intra-rack switching

Georgios Drainakis, Peristera Baziana, and Adonis Bogris
J. Opt. Commun. Netw. 15(11) 804-819 (2023)