Power loss analysis in thermally-tuned nanophotonic switch for on-chip interconnect

Dehghani, Fatemeh; Mohammadi, Siamak; Barekatain, Behrang; Abdollahi, Meisam

doi:10.1016/j.nancom.2020.100323

Cited by 12 publications

(1 citation statement)

References 34 publications

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“…However, the practical challenge of optical switches is to eliminate the insertion loss and crosstalk [3]. Currently, the most advanced large-scale architectures include Switchand-Select [6], Benes [7], [8], Clos-Benes [9], PILOSS [10], Spanke-Benes [11], and Fat-tree [12], [13]. Among these methods, the Benes method is a promising technology as it eliminates insertion loss with the least number of optical switches [14].…”

Section: Introductionmentioning

confidence: 99%

Bi-Directional Benes With Large Port-Counts and Low Waveguide Crossings for Optical Network-on-Chip

2021

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We propose a new variant of the Benes network using a merge-replace-fold approach. It is to realize a large port-count optical switch with low waveguide crossings. A bidirectional switch is built instead of a unidirectional switch. Compared to the classical Benes, it requires the same number of switches but far fewer intersections. The novel designs enable a 24-percentage reduction in waveguide intersections. Moreover, it has a worst-case insertion loss of 12.01 dB and a comparable crosstalk level of -13.67 dB between the neighbouring paths. Thus, it is suitable for use in high-speed optical networks-on-chip.INDEX TERMS Optical interconnections, Optical NoC, Silicon photonics, Optical resonators, Optical switches.

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