SYNCHRONIZED 2-COLOR OPERATION OF A PASSIVELY MODE-LOCKED ERBIUM-DOPED FIBER LASER BY DUAL INJECTION LOCKING

The recently introduced harmonic injection locking is a method for gen erating pulse trains at high repetition rates from passively mode-lock ed lasers. We report the simultaneous injection locking of two spectra l bands in an erbium-doped fiber laser by injection of two spectrally distinct and temporally synchronized pulse trains. The injection-locke d laser simultaneously produced pulses at wavelengths of 1.53 and 1.55 mu m, each at a 7.5-GHz repetition rate and with a pulse width of 10 ps. We compared the experimental results with those of a passively mod e-locked laser. (C) 1996 Optical Society of America