Sub-Nanosecond Clock and Data Recovery in an Optically-Switched Data Centre Network
- Kari Clark ,
- Hitesh Ballani ,
- Polina Bayvel ,
- Daniel Cletheroe ,
- Thomas Gerard ,
- Istvan Haller ,
- Krzysztof Jozwik ,
- Kai Shi ,
- Benn Thomsen ,
- Philip Watts ,
- Hugh Williams ,
- Paolo Costa ,
- Georgios Zervas ,
- Zhixin Liu
44th European Conference on Optical Communication (ECOC Post-deadline paper) |
We demonstrate a clock and data recovery technique that achieves <625ps locking time for 25.6Gb/s-OOK and show its robustness under worst-case data centre temperature variation. The locking time was improved by 12×, making nanosecond optical switching viable in data centres.