Title :
Long-haul DWDM/SCM transmission of 64- and 256-QAM using electroabsorption modulated laser transmitters
Author :
Wilson, G.C. ; Delavaux, J.-M. ; Srivastava, A. ; Hullin, Cyril ; McIntosh, C. ; Bethea, C.G. ; Wolf, C.
Author_Institution :
Onetta, Piscataway, NJ, USA
Abstract :
We report the first eight-wavelength hybrid dense wavelength-division multiplexing/subcarrier multiplexing (DWDM/SCM) transmission over 800 km (ten spans) of standard single-mode fiber, with 1.04-Gb/s payload on each wavelength in 35 6-MHz 64-quadrature amplitude modulated (QAM) channels, without dispersion compensation. Forward error-correction coding (FEC) was used to achieve error-free performance. Error-free performance on the majority of channels was also achieved for 64-QAM without FEC and for 256-QAM with FEC over 400 km. We used electroabsorption modulated laser transmitters.
Keywords :
Reed-Solomon codes; cable television; electro-optical modulation; electroabsorption; error correction codes; error statistics; optical fibre networks; optical transmitters; quadrature amplitude modulation; subcarrier multiplexing; wavelength division multiplexing; 1.04 Gbit/s; 256-QAM; 400 km; 6 MHz; 64-QAM; 64-quadrature amplitude modulated channels; 800 km; eight-wavelength hybrid dense wavelength-division multiplexing/subcarrier multiplexing transmission; electroabsorption modulated laser transmitters; error-free performance; forward error-correction coding; long-haul DWDM/SCM transmission; payload; standard single-mode fiber; Chirp modulation; Fiber lasers; Forward error correction; Optical fiber dispersion; Optical modulation; Optical transmitters; Payloads; Quadrature amplitude modulation; WDM networks; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.1022012
