Publications [#195304] of Nimmi Ramanujam

Other

1. Ramanujam, N. and Puc, A.B. and Lenner, G. and Kidorf, H.D. and Davidson, C.R. and Hayee, I. and Cai, J.-X. and Nissov, M. and Pilipetskii, A. and Rivers, C. and Bergano, N.S., Forward error correction (FEC) techniques in long-haul optical transmission systems, LEOS 2000. 2000 IEEE Annual Meeting Conference Proceedings. 13th Annual Meeting. IEEE Lasers and Electro-Optics Society 2000 Annual Meeting (Cat. No.00CH37080), vol. vol.2 (2000), pp. 405 - 6, Rio Grande, Puerto Rico [LEOS.2000.893884]
   (last updated on 2011/09/23)

   Abstract:
   The use of FEC provides significant coding gain, which has been used to demonstrate error-free transmission (1) under severely errored operating conditions, (2) with high spectral efficiency, (3) over distances exceeding 10,000 km, and (4) at high bit rates. Recent experiments using FEC have demonstrated aggregate transmission capacity approaching 2 Tb/s. Most importantly, FEC-coded transmission can tolerate a lower optical SNR on the line, which in turn reduces impairments induced by nonlinearity, with the net effect being an increase in the Q²-factor when signal power is reduced. There is presently significant activity directed towards developing more powerful codes as well as more efficient decoding algorithms

   Keywords:
   error correction codes;forward error correction;optical crosstalk;optical fibre communication;optical fibre dispersion;optical fibre losses;wavelength division multiplexing;