Title :
Nearly dispersion-penalty-free transmission using blue-shifted 1.55- mu m distributed feedback lasers
Author :
Lin, M.S. ; Wang, S.J. ; Kuo, C.Y. ; Melley, M.P.
Author_Institution :
AT&T Bell Labs., Murray Hill, NJ, USA
Abstract :
Nearly dispersion-penalty-free transmission over 40 km of nondispersion-shifted single-mode fiber was demonstrated using blue-shifted 1.55- mu m distributed feedback lasers. This good system performance is attributed to the narrow and blue-shifted modulated optical spectrum which is in turn associated with the soft turn-on light-current characteristics. Transmission experiments using lasers with hard turn-on light-current characteristics give rise to broad modulated spectra and higher dispersion penalties.<>
Keywords :
III-V semiconductors; distributed feedback lasers; gallium arsenide; gallium compounds; indium compounds; optical dispersion; optical fibres; semiconductor junction lasers; spectral line shift; 1.55 micron; 40 km; InGaAsP distributed feedback lasers; blue shifted distributed feedback lasers; blue-shifted modulated optical spectrum; broad modulated spectra; dispersion-penalty-free transmission; hard turn-on light-current characteristics; nondispersion-shifted single-mode fiber; soft turn-on light-current characteristics; system performance; transmission experiments; Chirp modulation; Distributed feedback devices; Fiber lasers; Gratings; Laser feedback; Laser modes; Optical feedback; Optical modulation; Power lasers; Ring lasers;
Journal_Title :
Photonics Technology Letters, IEEE
