Title :
Enhancement of dynamic range in 1.55-μm VCSELs using injection locking
Author :
Chrostowski, Lukas ; Chang, Chih-Hao ; Chang-Hasnain, Connie J.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of California, Berkeley, CA, USA
fDate :
4/1/2003 12:00:00 AM
Abstract :
Injection locking is demonstrated to improve the analog performance of long wavelength vertical-cavity surface-emitting lasers. The third-harmonic dynamic range was improved by /spl sim/20 dB/spl middot/Hz/sup 2/3/ to be /spl sim/94 dB/spl middot/Hz/sup 2/3/, and the modulation bandwidth was increased two fold. The locking conditions are studied and show that the improvement is present over a wide range of injection power and wavelength detuning.
Keywords :
distributed feedback lasers; laser mode locking; laser transitions; laser tuning; optical transmitters; semiconductor lasers; surface emitting lasers; 1.55-/spl mu/m VCSELs; dynamic range; injection locking; injection power; locking conditions; long wavelength vertical-cavity surface-emitting lasers; modulation bandwidth; third-harmonic dynamic range; wavelength detuning; Distributed feedback devices; Dynamic range; Frequency; Injection-locked oscillators; Laser feedback; Laser noise; Laser theory; Semiconductor lasers; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.809292
