期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 38, 期 12, 页码 3200-3208出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2020.2982902
关键词
Bandwidth; Silicon; Fabrication; Optical switches; Silicon compounds; Couplers; Arrayed waveguide grating router; optical interconnections; optical switches; photonic integrated circuits; silicon photonics
资金
- DoD Kumihmo II project [H98230-19-C-0209]
- NSF ECCS Award [1611560]
- DoE UAI consortium award [DE-SC0019582, DE-SC0019526, DE-SC0019692]
- U.S. Department of Energy (DOE) [DE-SC0019526, DE-SC0019582, DE-SC0019692] Funding Source: U.S. Department of Energy (DOE)
This article proposes and experimentally demonstrates the first bandwidth-reconfigurable all-to-all optical interconnects using a multi-Free-Spectral-Ranges (FSR) integrated 8 x 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/lambda all-to-all interconnectivity in FSR0.
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