1. Cisco Global Cloud Index: Forecast and Methodology, 2016–2021 White Paper, https://www.cisco.com/c/en/us/solutions/collateral/service-provider/global-cloud-index-gci/white-paper-c11-738085.html.
2. Benjamin Lee, Optical Fiber Communication Conference 2018, tutorial paper Th3C.3.
3. Ming Wu, Optical Fiber Communication Conference 2019, invited paper Th1E.1.
4. Broadcom Inc. webpage: https://jp.broadcom.com/blog/broadcom-s-tomahawk-3-ethernet-switch-chip-delivers-12-8-tbps-of-speed-in-a-single-16-nm-device.