Title :
The influence of chirp and extinction ratio on directly modulated DFB lasers
Author :
Geun-Young Kim ; Yong-Gi Lee
Author_Institution :
Korea Telecom Access Network Lab., Taejeon, South Korea
Abstract :
The interaction of fiber dispersion, chirp and extinction ratio is investigated, and optimal driving condition for directly modulated transmitter at 2.5 Gbit/s is discussed. We experimentally confirmed that the optimum bias condition exists at 1.5/spl sim/1.8 fold above threshold current.
Keywords :
chirp modulation; distributed feedback lasers; electro-optical modulation; optical fibre dispersion; optical transmitters; semiconductor lasers; wavelength division multiplexing; 2.5 Gbit/s; WDM; above threshold current; chirp modulation; directly modulated DFB lasers; directly modulated transmitter; extinction ratio; fiber dispersion; optical transmitter; optimal driving condition; optimum bias condition; Chirp modulation; Extinction ratio; Logic; Optical attenuators; Optical fiber polarization; Optical interferometry; Optical receivers; Optical transmitters; Threshold current; Time measurement;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.970967
