Title :
Scalable and Distributed Contention Resolution in AWGR-Based Data Center Switches Using RSOA-Based Optical Mutual Exclusion
Author :
Proietti, Roberto ; Nitta, Christopher ; Yawei Yin ; Runxiang Yu ; Yoo, S.J.B. ; Akella, Venkatesh
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Davis, Davis, CA, USA
Abstract :
We describe a mutual exclusion element using a reflective semiconductor optical amplifier (RSOA) and a simple scheme for contention resolution in arrayed waveguide grating router (AWGR)-based optical switches in data centers. We describe a hardware demonstration and detailed performance analysis of an AWGR-based optical switch based on the proposed concept. We show that the proposed RSOA-based contention resolution significantly reduces latency compared to existing methods and that it does not require any global or centralized coordination, which makes it inherently scalable and suitable for emerging data center networks.
Keywords :
amplifiers; computer centres; optical interconnections; optical switches; AWGR-based data center switches; RSOA-based optical mutual exclusion; arrayed waveguide grating router; centralized coordination; contention resolution; data center networks; distributed contention resolution; global coordination; mutual exclusion element; reflective semiconductor optical amplifier; Field programmable gate arrays; Optical buffering; Optical interconnections; Optical polarization; Optical reflection; Optical switches; Semiconductor optical amplifiers; Contention resolution; data center networks; mutual exclusion; photonic interconnects;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2012.2209113