Title :
Theoretical analysis of modulation response and second-order harmonic distortion in vertical-cavity surface-emitting lasers
Author :
Yu, S.F. ; Wong, W.N. ; Shum, P. ; Li, E. Herbert
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
fDate :
12/1/1996 12:00:00 AM
Abstract :
A rate-equation model is developed, with the consideration of size effects, to analyze the steady state and dynamic behavior of index-guided vertical-cavity surface-emitting lasers. The size dependence of spatial hole burning, cavity loss, as well as thermal resistance of device cavity are taken into account. Using this model, the influence of size effects on the amplitude modulation response and second-order harmonic distortion are studied. It is found that a laser with a small core radius exhibits better modulation response and less harmonic distortion than that of a large waveguide device, however, there is a tradeoff between the output power and modulation efficiency of the lasers
Keywords :
amplitude modulation; harmonic distortion; laser cavity resonators; laser theory; optical hole burning; optical losses; optical modulation; refractive index; semiconductor device models; semiconductor lasers; size effect; surface emitting lasers; thermal resistance; amplitude modulation response; cavity loss; device cavity; dynamic behavior; index-guided vertical-cavity surface-emitting lasers; large waveguide device; less harmonic distortion; modulation efficiency; modulation response; output power; rate-equation model; second-order harmonic distortion; size dependence; size effects; small core radius; spatial hole burning; steady state; theoretical analysis; thermal resistance; vertical-cavity surface-emitting lasers; Harmonic distortion; Laser modes; Laser noise; Power lasers; Steady-state; Surface emitting lasers; Surface resistance; Thermal resistance; Vertical cavity surface emitting lasers; Waveguide lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
