Title :
Multi-Data-Rate System Performance of a 40-GHz All-Optical Clock Recovery Based on a Quantum-Dot Fabry–PÉrot Laser
Author :
Roncin, V. ; O´Hare, A. ; Lobo, S. ; Jacquette, E. ; Bramerie, L. ; Rochard, P. ; Le, Q.T. ; Gay, M. ; Simon, J.C. ; Shen, A. ; Renaudier, J. ; Lelarge, F. ; Duan, G.H.
Author_Institution :
FOTON-ENSSAT, Lannion
Abstract :
Bit-error-rate assessment of a multi-rate all-optical clock recovery (OCR) based on a narrow linewidth mode-locked quantum-dot (QD) Fabry-Perot laser is presented in this letter. OCR has been achieved without external feedback. We use a QD Fabry-Perot semiconductor laser designed for 40-GHz clock extraction. We then present OCR performance with 40-, 80-, and 160-Gb/s input data signal and demonstrate that clock recovery has been obtained thanks to subharmonic locking process. Results are presented through penalty measurement using an original characterization based on recovered clock remodulation with electrical data from the transmitter. This technique allows us to evaluate the quality of the recovered clock.
Keywords :
Fabry-Perot resonators; electro-optical modulation; error statistics; laser mode locking; optical transmitters; quantum dot lasers; synchronisation; QD semiconductor laser design; all-optical clock recovery; bit rate 160 Gbit/s; bit rate 40 Gbit/s; bit rate 80 Gbit/s; bit-error-rate assessment; clock extraction; clock remodulation; frequency 40 GHz; multidata-rate system performance; narrow linewidth mode-locked laser; penalty measurement; quantum-dot Fabry-Perot laser; subharmonic locking process; Clocks; Data mining; Fabry-Perot; Laser feedback; Laser mode locking; Optical character recognition software; Optical design; Quantum dots; Semiconductor lasers; System performance; Clock synchronization; error analysis; optical communication; semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.902299
