Scalability of silicon photonic microring based switch

Nikolova, Dessislava; Hendry, Robert; Rumley, Sébastien; Bergman, Keren

doi:10.1109/icton.2014.6876504

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…The calculations of these exact values are taken from [23], where optimized parameters [22] are assumed. As mentioned earlier, if R is the radix of the switch in a configuration, 2log 2 (R) -1 switches must be traversed by the optical signals.…”

Section: A Device Loss Modelsmentioning

confidence: 99%

Modeling and Evaluation of Chip-to-Chip Scale Silicon Photonic Networks

Hendry

Nikolova

Rumley

et al. 2014

2014 IEEE 22nd Annual Symposium on High-Performance Interconnects

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Section: A Device Loss Modelsmentioning

confidence: 99%

Modeling and Evaluation of Chip-to-Chip Scale Silicon Photonic Networks

Hendry

Nikolova

Rumley

et al. 2014

2014 IEEE 22nd Annual Symposium on High-Performance Interconnects

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“…While prior studies [24] have examined these issues, they were based on simplified models, which did not take into account physical layer parameters. In [25] the scalability of the switch fabric was estimated without accounting for the critical waveguide crossings. The model described in this paper provides a complete physical layer model for the crosstalk and insertion losses arising from the 2 × 2 switching elements and is scaled to evaluate switch fabric planar architectures.…”

Section: Introductionmentioning

confidence: 99%

Scaling silicon photonic switch fabrics for data center interconnection networks

Nikolova¹,

Rumley²,

Calhoun³

et al. 2015

Opt. Express

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With the rapidly increasing aggregate bandwidth requirements of data centers there is a growing interest in the insertion of optically interconnected networks with high-radix transparent optical switch fabrics. Silicon photonics is a particularly promising and applicable technology due to its small footprint, CMOS compatibility, high bandwidth density, and the potential for nanosecond scale dynamic connectivity. In this paper we analyze the feasibility of building silicon photonic microring based switch fabrics for data center scale optical interconnection networks. We evaluate the scalability of a microring based switch fabric for WDM signals. Critical parameters including crosstalk, insertion loss and switching speed are analyzed, and their sensitivity with respect to device parameters is examined. We show that optimization of physical layer parameters can reduce crosstalk and increase switch fabric scalability. Our analysis indicates that with current state-of-the-art devices, a high radix 128 × 128 silicon photonic single chip switch fabric with tolerable power penalty is feasible. The applicability of silicon photonic microrings for data center switching is further supported via review of microring operations and control demonstrations. The challenges and opportunities for this technology platform are discussed.

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