Abstract
We demonstrate a seamless spectral defragmentation in an elastic all-optical add–drop node based on wavelength division multiplexing (WDM) channels of Nyquist optical time division multiplexing (OTDM) signal. A 172 Gbaud Nyquist OTDM signal occupying a 215 GHz range is elastically shifted adjacent to its neighboring channel, completely filling a variable spectral gap caused by the dropped channel. The frequency shift is done in a dual-stage polarization-diversity four wave mixing-based converter using polarization-maintaining highly nonlinear fiber. The spectrally defragmented signals are successfully transmitted over a 80 km fiber link with .
© 2013 Optical Society of America
Full Article | PDF ArticleMore Like This
Hung Nguyen Tan, Takashi Inoue, Takayuki Kurosu, and Shu Namiki
Opt. Express 21(17) 20313-20321 (2013)
H. Hu, D. Kong, E. Palushani, M. Galili, H. C. H. Mulvad, and L. K. Oxenløwe
Opt. Express 22(1) 110-118 (2014)
Satoshi Shimizu, Gabriella Cincotti, and Naoya Wada
Opt. Express 25(4) 3496-3503 (2017)