We propose occupying the guard bands in closely spaced WDM systems with redundant signal spectral components to increase tolerance to frequency misalignment and channel shaping from multiplexing elements. By cyclically repeating the spectrum of a modulated signal, we show improved tolerance to impairments due to add/drop multiplexing with a commercial wavelength selective switch in systems using 5%–20% guard bands on a 50 GHz DWDM grid.
© 2017 Optical Society of AmericaFull Article | PDF Article
OSA Recommended Articles
Bill Corcoran, Chen Zhu, Binhuang Song, and Arthur J. Lowery
Opt. Express 24(26) 29670-29681 (2016)
J. Opt. Commun. Netw. 9(4) C35-C44 (2017)
Dan M. Marom, Paul D. Colbourne, Antonio D’Errico, Nicolas K. Fontaine, Yuichiro Ikuma, Roberto Proietti, Liangjia Zong, José M. Rivas-Moscoso, and Ioannis Tomkos
J. Opt. Commun. Netw. 9(1) 1-26 (2017)