Abstract
We report on a novel, efficient technique for all-optical clock recovery from RZ-OOK data signals based on spectral phase-only (all-pass) optical filtering. This technique significantly enhances both the recovered optical clock quality and energy efficiency in comparison with conventional amplitude optical filtering approaches using a Fabry-Perot filter. The proposed concept is validated through recovery of the optical clock from a 640 Gbit/s RZ-OOK data signal using a commercial linear optical waveshaper. (C) 2014 Optical Society of America
| Original language | English |
|---|---|
| Journal | Optics Letters |
| Volume | 39 |
| Issue number | 9 |
| Pages (from-to) | 2815-2818 |
| Number of pages | 4 |
| ISSN | 0146-9592 |
| DOIs | |
| Publication status | Published - 2014 |
Keywords
- OPTICS
- Atomic clocks
- Energy efficiency
- Optical variables measurement
- All pass
- All-optical clock recovery
- Data signals
- Fabry-Perot filters
- Linear optical
- Optical clocks
- Optical filtering
- Ultra-fast
- Optical filters
