P. Gambini et P. Bayvel, 3000 KM TRANSMISSION OF DENSELY-SPACED, 2.5 GBIT S(-1) DIRECTLY-MODULATED CHANNELS DEMULTIPLEXED WITH A CONCAVE GRATING DEMULTIPLEXER, Optical and quantum electronics, 30(2), 1998, pp. 115-119
WDM transmission and demultiplexing of four directly-modulated DFB las
ers at 2.5 Gbit s(-1), with very narrow channel spacing (50 GHz) over
3000 km of dispersion-shifted fibre has been performed with a single-s
pan recirculating loop test-bed. A high-performance free-space concave
grating demultiplexer is used for the first time in a dense WDM trans
mission experiment.