Title :
Prescaled timing extraction from 400 Gb/s optical signal using a phase lock loop based on four-wave-mixing in a laser diode amplifier
Author :
Kamatani, Osamu ; Kawanishi, Satolu
Author_Institution :
NTT Opt. Network Syst. Labs., Kanagawa, Japan
Abstract :
Theoretical and experimental investigation determines ultrahigh-speed cross-correlation detection characteristics of a phase lock loop based on four-wave-mixing in a traveling-wave laser diode optical amplifier from 100 Gb/s to 1 Tb/s. A long cavity laser diode amplifier and a super-continuum clock pulse are used for the ultrahigh-speed cross-correlation detection. Successful prescaled 6.3-GHz clock recovery from a 400-Gb/s optical time division multiplexed signal is also presented using a cross-correlation between the 400 Gb/s optical signal and a 6.3 GHz, 1 ps, optical super-continuum clock pulse train.
Keywords :
clocks; multiwave mixing; optical correlation; optical fibre networks; optical phase locked loops; optical signal detection; semiconductor lasers; time division multiplexing; 1 ps; 100 Gbit/s to 1 Tbit/s; 400 Gb/s optical signal; 400 Gbit/s; 6.3 GHz; clock recovery; four-wave-mixing; laser diode amplifier; long cavity laser diode amplifier; optical super-continuum clock pulse train; optical time division multiplexed signal; phase lock loop; prescaled timing extraction; super-continuum clock pulse; traveling-wave laser diode optical amplifier; ultrahigh-speed cross-correlation detection characteristics; Clocks; Diode lasers; Optical amplifiers; Optical pulses; Phase detection; Pulse amplifiers; Semiconductor optical amplifiers; Stimulated emission; Time division multiplexing; Timing;
Journal_Title :
Photonics Technology Letters, IEEE
