Title :
18 GHz all-optical frequency locking and clock recovery using a self-pulsating two-section DFB-laser
Author :
Feiste, U. ; As, D.J. ; Ehrhardt, A.
Author_Institution :
Heinrich-Hertz-Inst. fur Nachrichtentech. Berlin GmbH, Germany
Abstract :
The suitability of self-pulsating multi-section DFB lasers for high speed signal processing is shown. First, the locking behaviour to an injected 17.6 GHz signal with sinusoidal modulation is investigated and a locking range of 220 MHz is estimated using a modulated optical power of 7 μW. Second, all-optical clock recovery is demonstrated at 17.6 Gbit/s by replacing the sinusoidal modulation by an optical bit pattern with a peak-power of 150 μW.
Keywords :
clocks; distributed feedback lasers; laser mode locking; optical communication equipment; optical information processing; optical modulation; semiconductor lasers; 150 muW; 17.6 GHz; 220 MHz; 7 muW; all-optical clock recovery; all-optical frequency locking; clock recovery; high speed signal processing; locking behaviour; locking range; multi-section; optical bit pattern; peak-power; self-pulsating; semiconductor laser diodes; sinusoidal modulation; two-section DFB-laser; Clocks; Diode lasers; Fiber lasers; Frequency; High speed optical techniques; Laser mode locking; Optical devices; Optical modulation; Optical pulses; Optical signal processing;
Journal_Title :
Photonics Technology Letters, IEEE
