A novel configuration was demonstrated to realize dual-wavelength operation
in an erbium-doped fiber ring laser by incorporating a pair of multiplexer
/demultiplexer. The repetition rate of each channel can be separately chang
ed by adjusting a delay line associated with that channel in the cavity wit
hout changing the radio frequency. Dual-wavelength pulses at 2.5 and 5 GHz
respectively were simultaneously obtained with pulse widths of 17.7 and 13
ps. (C) 2000 Elsevier Science B.V. All rights reserved.