Single- and dual-wavelength pulse train generation in frequency-modulated Er-Yb lasers up to 20 GHz

摘要

In this paper we present recent results obtained on the generation of ultra-high repetition rate optical pulse trains at 1.5μm in asynchronously frequency-modulated Er-Yb:glass lasers. Nearly transform-limited pulse trains at either single or dual carrier wavelength with repetition rates up to ～20 GHz are generated by means of an external fiber Bragg grating. These pulse trains are of great potential interest for soliton-based optical transmission systems.