Reconfigurable SDM switching using novel silicon photonic integrated circuit

Ding, Yunhong, Kamchevska, Valerija, Dalgaard, Kjeld, Ye, Feihong, Asif, Rameez, Gross, Simon, Withford, Michael J., Galili, Michael, Morioka, Toshio and Oxenløwe, Leif Katsuo (2016) Reconfigurable SDM switching using novel silicon photonic integrated circuit. Scientific Reports, 6. ISSN 2045-2322

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Abstract

Space division multiplexing using multicore fibers is becoming a more and more promising technology. In space-division multiplexing fiber network, the reconfigurable switch is one of the most critical components in network nodes. In this paper we for the first time demonstrate reconfigurable space-division multiplexing switching using silicon photonic integrated circuit, which is fabricated on a novel silicon-on-insulator platform with buried Al mirror. The silicon photonic integrated circuit is composed of a 7 × 7 switch and low loss grating coupler array based multicore fiber couplers. Thanks to the Al mirror, grating couplers with ultra-low coupling loss with optical multicore fibers is achieved. The lowest total insertion loss of the silicon integrated circuit is as low as 4.5 dB, with low crosstalk lower than −30 dB. Excellent performances in terms of low insertion loss and low crosstalk are obtained for the whole C-band. 1 Tb/s/core transmission over a 2-km 7-core fiber and space-division multiplexing switching is demonstrated successfully. Bit error rate performance below 10−9 is obtained for all spatial channels with low power penalty. The proposed design can be easily upgraded to reconfigurable optical add/drop multiplexer capable of switching several multicore fibers.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Computing Sciences
UEA Research Groups:	Faculty of Science > Research Groups > Smart Emerging Technologies (former - to 2025) Faculty of Science > Research Groups > Cyber Security Privacy and Trust Laboratory (former - to 2025)
Depositing User:	LivePure Connector
Date Deposited:	25 Jan 2022 17:30
Last Modified:	18 Oct 2025 07:32
URI:	https://ueaeprints.uea.ac.uk/id/eprint/83126
DOI:	10.1038/srep39058

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