Title :
Widely tunable directly modulated sampled-grating DBR lasers
Author :
Majewski, M.L. ; Barton, J. ; Coldren, L.A. ; Akulova, Y. ; Larson, M.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
We investigated widely tunable SGDBR lasers for their operation under the direct intensity modulation using both analog and digital signals. We found that currently available devices can be direct modulated with analog signals up to 6-GHz and can provide single-mode operation up to a 10-dB extinction ratio under the large-signal modulation. These devices can also be digitally modulated, for example at the rate of 2.5 Gb/s and 231-1 word pattern allowing for their transmission over a 75-km of an ordinary single mode fibre.
Keywords :
diffraction gratings; distributed Bragg reflector lasers; electro-optical modulation; laser tuning; optical communication equipment; semiconductor lasers; 75 km; analog signals; digital signals; diode lasers; direct intensity modulation; extinction ratio; large-signal modulation; ordinary single mode fibre; single-mode operation; widely tunable SGDBR lasers; widely tunable directly modulated sampled-grating DBR lasers; Distributed Bragg reflectors; Fiber lasers; Intensity modulation; Laser tuning; Optical coupling; Optical modulation; Semiconductor lasers; Surface emitting lasers; Tunable circuits and devices; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036540
