Title :
SG-DBR tunable laser linewidth and its impact on advanced modulation format transmission
Author :
Shi, Kai ; Anandarajah, P.M. ; Reid, D. ; Smyth, F. ; Barry, L.P. ; Yu, Yonglin
Author_Institution :
Res. Inst. of Networks & Commun. Eng., Dublin City Univ., Dublin, Ireland
Abstract :
In this paper, the authors characterize the linewidth of a four-section SG-DBR laser, using the self-heterodyne method, as a function of both phase current, and back and front mirror currents. The tuning curves of linewidth versus different front and back grating currents are shown. The current of the front grating is scanned from 0 to 40 mA with 0.5 mA step, while the current of the back grating is scanned from 0 to 60mA with 1mA step.
Keywords :
distributed Bragg reflector lasers; laser tuning; optical communication equipment; SG-DBR tunable laser linewidth; advanced modulation format transmission; current 0 mA to 60 mA; mirror currents; self-heterodyne method; Bit error rate; Electronic equipment testing; Gratings; Laser tuning; Mirrors; Optical modulation; Optical receivers; Optical transmitters; Tunable circuits and devices; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5192162
