Title :
Reduction of damping in high-speed semiconductor lasers
Author :
Wang, Gary ; Nagarajan, Radhakrishnan ; Tauber, Dan ; Bowers, John
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
fDate :
6/1/1993 12:00:00 AM
Abstract :
An analytical expression for the intrinsic gain suppression factor based on carrier heating is derived. The theory shows good agreement with the published experimental value of in =+1.5*10/sup -17/ cm/sup 3/ for in-plane lasers. For the first time, a negative gain suppression factor for particular laser designs is predicted and experimentally observed. A negative gain suppression factor can lead to the elimination of damping in semiconductor lasers. Using vertical-cavity surface-emitting lasers, a negative gain suppression factor of -2.2*10/sup -17/ cm/sup 3/ is observed.<>
Keywords :
damping; high-speed optical techniques; laser cavity resonators; semiconductor lasers; carrier heating; damping; high-speed semiconductor lasers; in-plane lasers; intrinsic gain suppression factor; vertical-cavity surface-emitting lasers; Damping; Distributed feedback devices; Electrons; Laser mode locking; Laser theory; Optical pulses; Pulse amplifiers; Semiconductor lasers; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
