Title :
Propagation of highly chirped pulses in fiber-optic communications systems
Author :
Cundiff, S.T. ; Collings, B.C. ; Boivin, L. ; Nuss, M.C. ; Bergman, K. ; Knox, W.H. ; Evangelides, S.G., Jr.
Author_Institution :
Bell Labs., Lucent Technol., Holmdel, NJ, USA
fDate :
5/1/1999 12:00:00 AM
Abstract :
The propagation of strongly chirped pulses in an amplified fiber-optic communications system is experimentally investigated. Spectral narrowing of the pulses is observed. The narrowing is attributed to interplay between the initial chirp and the nonlinearity in the transmission line. Four-wave mixing (FWM) between wavelength channels is found to be similar to that for unchirped nonreturn-to-zero (NRZ) pulses. Low error rate transmission over 720 km is achieved using these chirped pulses, which are generated by a transmitter based on a mode-locked fiber laser
Keywords :
chirp modulation; multiwave mixing; optical fibre amplifiers; optical modulation; spectral line narrowing; 720 km; amplified fiber-optic communications system; fiber-optic communications systems; four-wave mixing; highly chirped pulse propagation; initial chirp; low error rate transmission; mode-locked fiber laser; nonlinearity; spectral narrowing; strongly chirped pulses; transmission line; transmitter; unchirped nonreturn-to-zero pulses; wavelength channels; Chirp; Error analysis; Fiber lasers; Four-wave mixing; Optical fiber communication; Optical pulse generation; Optical signal processing; Pulse amplifiers; Transmission lines; Transmitters;
Journal_Title :
Lightwave Technology, Journal of
