Abstract

This article proposes and experimentally demonstrates the first bandwidth-reconfigurable all-to-all optical interconnects using a multi-Free-Spectral-Ranges (FSR) integrated 8 × 8 SiPh Flex-LIONS module. The multi-FSR operation utilizes the first FSR (FSR₁) to steer the bandwidth between selected node pairs and the zeroth FSR (FSR₀) to guarantee a minimum diameter all-to-all topology among the interconnected nodes after reconfiguration. Successful Flex-LIONS design, fabrication, packaging, and system testing demonstrate error-free all-to-all interconnects for both FSR₀ and FSR₁ with a 5.3-dB power penalty induced by AWGR intra-band crosstalk under the worst-case polarization scenario. After reconfiguration in FSR₁, the bandwidth between the selected pair of nodes is increased from 50 to 125 Gb/s while maintaining a 25 Gb/s/λ all-to-all interconnectivity in FSR₀.

Monolithic silicon photonic 32x32 thin-CLOS AWGR for all-to-all interconnections

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Hi-LION: Hierarchical Large-Scale Interconnection Optical Network With AWGRs [Invited]

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J. Opt. Commun. Netw. 7(1) A97-A105 (2015)

Topology configuration scheme for accelerating coflows in a hyper-FleX-LION

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J. Opt. Commun. Netw. 14(10) 805-814 (2022)

SL-Hyper-FleX: a cognitive and flexible-bandwidth optical datacom network by self-supervised learning [Invited]

Che-Yu Liu, Xiaoliang Chen, Zhaohui Li, Roberto Proietti, and S. J. Ben Yoo
J. Opt. Commun. Netw. 14(2) A113-A121 (2022)

A scalable silicon photonic chip-scale optical switch for high performance computing systems

Runxiang Yu, Stanley Cheung, Yuliang Li, Katsunari Okamoto, Roberto Proietti, Yawei Yin, and S. J. B. Yoo
Opt. Express 21(26) 32655-32667 (2013)