M. Margalit et al., NOISE-REDUCTION BY HARMONIC INJECTION LOCKING OF PASSIVELY MODE-LOCKED ERBIUM-DOPED FIBER LASERS, Optics letters, 20(18), 1995, pp. 1877-1879
Harmonic injection locking can generate pulse trains at high repetitio
n rates from passively made-locked lasers. We have examined experiment
ally the mutual interaction of noise with the locking process. For inj
ected signals with large timing and amplitude noise, the mode-locked f
iber laser generated a pulse train with reduced noise. Injected signal
s with low timing and amplitude noise were employed for the reduction
of the internal noise of the passively mode-locked laser. The achieved
output pulse-to-pulse timing jitter in the range of 20-2500 Hz was si
milar to 0.6 ps, comparable with that of actively stabilized fiber las
ers. (C) 1995 Optical Society of America