Abstract

The simultaneous operation of a passively mode-locked laser at two different wavelengths is important as a source for high-pulse-rate, wavelength-division multiplexing (WDM) schemes, for wideband pump probe and four-wave mixing experiments. Using the recently introduced harmonic injection-locking scheme,^1–3 we achieved synchronized locking of a passively mode-locked fiber laser, at two wavelengths (1.53 μm and 1.55 μm) simultaneously, producing pulses of several picoseconds with 7.5-GHz pulse repetition rates. Because the same scheme can also serve as a storage ring,^1,2 this work demonstrates the feasibility of a two-color memory ring.

© 1996 Optical Society of America