Title :
Direct modulation of a distributed feedback laser for 40-Gbit/s very-short-reach optical links
Author :
Sato, Kenji ; Kuwahara, Shoichiro ; Miyamoto, Yutaka ; Shimizu, Naofumi
Author_Institution :
NTT Network Innovation Labs., NTT Corp., Kanagawa, Japan
Abstract :
We demonstrated direct modulation at 40-Gbit/s using a commercially available 1.3-μm DFB laser. Clear eye opening observed for a bias current of up to 100 mA and output power of more than 11 dBm. BER measurements showed error-free operation. BER improvement was obtained for a negative dispersion fiber. These results indicate that directly-modulated DFB lasers have good potential for use as a cost-effective light source in VSR optical links.
Keywords :
distributed feedback lasers; electro-optical modulation; error statistics; optical transmitters; semiconductor lasers; wavelength division multiplexing; 1.3 micron; 100 mA; 40 Gbit/s; BER measurements; VSR optical links; bias current; commercially available DFB laser; cost-effective light source; direct modulation; directly-modulated DFB lasers; error-free operation; negative dispersion fiber; output power; Bandwidth; Bit error rate; Dispersion; Distributed feedback devices; Fiber lasers; Frequency; Laboratories; Laser feedback; Optical fiber communication; Optical transmitters;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036454
