Title :
Effects of self-phase modulation on sub-500 fs pulse transmission over dispersion compensated fiber links
Author :
Shen, Shuai ; Chang, Cheng-Chun ; Sardesai, Harshad P. ; Binjrajka, Vikrant ; Weiner, Andrew M.
Author_Institution :
Sch. of Electr. Eng., Purdue Univ., West Lafayette, IN, USA
fDate :
3/1/1999 12:00:00 AM
Abstract :
The effects of nonlinearity on sub-500 fs pulse transmission over dispersion compensated fiber links using dispersion compensating fiber technique are investigated numerically and experimentally. The pulse broadening and recompression ratio of the 2.5-km transmission link is over 300. The postcompensated and precompensated links are compared when the input pulse energy ranges from 15 to 159 pJ. At high powers, self-phase modulation (SPM) degrades the pulse recompression process and provides an upper bound on the transmitted pulse energy. The SPM effect is stronger in the postcompensated link than in the precompensated link. A dramatic spectral narrowing effect was observed in the postcompensated link. Pulse energies up to tens of pJ, consistent with high quality communication, should be possible for a sub-500 fs pulse in such dispersion compensated links
Keywords :
compensation; high-speed optical techniques; nonlinear optics; optical fibre dispersion; optical fibre networks; optical modulation; self-phase modulation; 15 to 150 pJ; 2.5 km; 500 fs; dispersion compensated fiber links; dispersion compensated links; dramatic spectral narrowing effect; fs pulse transmission; high quality communication; input pulse energy; nonlinearity; postcompensated links; precompensated links; pulse broadening; pulse recompression process; recompression ratio; self-phase modulation; transmission link; transmitted pulse energy; Bandwidth; Erbium-doped fiber amplifier; Multiaccess communication; Optical fiber dispersion; Optical fibers; Optical pulses; Pulse amplifiers; Pulse modulation; Scanning probe microscopy; Space vector pulse width modulation;
Journal_Title :
Lightwave Technology, Journal of
