Impact of channel spacing in a WDM network on the performance of wireless channels selected by the coherent optical heterodyne radio-over-fiber approach. Experimental demonstration shows a penalty of about ~1 dB per 5 GHz decreased channel spacing down to a channel spacing of 15 GHz and a penalty of ~2 dB between 15 GHz and 10 GHz channel spacing.

© 2015 Optical Society of America

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