Title :
Chaotic dynamics of mode competition in a vertical-cavity surface emitting laser diode under DC excitation
Author :
Richie, D.A. ; Zhang, T. ; Choquette, K.D. ; Leibenguth, R.E. ; Zachman, J.C. ; Tabatabaie, N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
fDate :
11/1/1994 12:00:00 AM
Abstract :
We discuss the dynamics of transverse mode competition in an etched air-post vertical-cavity laser diode under dc excitation using an annular ring contact as a spatial filter. Distinct regions of operation are found for various ranges of fixed bias currents. At 1.5 times threshold, the device enters a region which exhibits chaotic fluctuations between the fundamental and a higher order lasing mode. The dynamics of these fluctuations are studied using the method of delays, and a calculation of the power spectrum and the correlation dimension are reported. It is found that the dynamics of the chaotic fluctuations have a correlation dimension of approximately 2.8. The results are indicative of a low-dimensional strange attractor underlying the modal competition noise
Keywords :
etching; fluctuations; laser modes; laser noise; optical chaos; semiconductor device noise; semiconductor lasers; spatial filters; surface emitting lasers; DC excitation; annular ring contact; chaotic dynamics; chaotic fluctuations; correlation dimension; etched air-post vertical-cavity laser diode; fixed bias currents; higher order lasing mode; low-dimensional strange attractor; modal competition noise; mode competition; spatial filter; transverse mode competition; vertical-cavity surface emitting laser diode; Chaos; Diode lasers; Etching; Fluctuations; Laser excitation; Laser modes; Laser noise; Optical surface waves; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
