Title :
Characterization of All-Optical Clock Recovery for 40 Gb/s RZ-OOK and RZ-DPSK Data Using Mode-Locked Semiconductor Lasers
Author :
Tang, Xuefeng ; Cartledge, John C. ; Shen, Alexandre ; Van Dijk, Frederic ; Akrout, Akram ; Duan, Guang-Hua
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, ON, Canada
Abstract :
We investigate the characteristics of all-optical clock recovery for return-to-zero differential phase-shift keying (RZ-DPSK) and return-to-zero on-off keying (RZ-OOK) signals at 40 Gb/s using mode-locked semiconductor lasers. Two mode-locked lasers with different configurations, a bulk active layer distributed Bragg reflector laser and a quantum-dot active layer Fabry-Perot laser, are used in the experimental investigation. The results reveal the implications of the input signal power, beat spectrum linewidth of the mode-locked laser, and intensity modulation on the jitter characteristics of the recovered clock signal.
Keywords :
differential phase shift keying; distributed Bragg reflector lasers; intensity modulation; laser beams; laser mode locking; optical communication; optical modulation; quantum dot lasers; semiconductor lasers; spectral line breadth; synchronisation; timing jitter; RZ-DPSK data; RZ-OOK data; all-optical clock recovery; bit rate 40 Gbit/s; distributed Bragg reflector laser; intensity modulation; jitter characteristics; mode-locked semiconductor laser; quantum-dot active layer Fabry-Perot laser; return-to-zero differential phase-shift keying; return-to-zero on-off keying signal; spectrum linewidth; All-optical clock recovery; distributed Bragg reflector laser; phase noise; quantum-dot Fabry-PÉrot laser; timing jitter;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2009.2025247
