Abstract
We demonstrate a four-channel WDM network at 622 Mb/s with 1 .3 xm multifrequency Fabry-Perot laser diodes. A channel spacing of only 15 nm was achieved by using a WDM component consisting of interference filters of special design. Results of laser-filter misalignment measurements suggested that more channels could be implemented without serious power penalties from mode-partition noise. Higher bit rate transmission in such a medium-density WDM system was also shown.
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