Chaotic dynamics of mode competition in a vertical-cavity surface emitting laser diode under DC excitation
| Autor: | D.A. Richie, T. Zhang, R.E. Leibenguth, Kent D. Choquette, N. Tabatabaie, J.C. Zachman |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Physics
Correlation dimension Laser diode Spatial filter business.industry Condensed Matter Physics Atomic and Molecular Physics and Optics Vertical-cavity surface-emitting laser law.invention Semiconductor laser theory Transverse mode Optics law Attractor Electrical and Electronic Engineering Atomic physics business Lasing threshold |
| Zdroj: | IEEE Journal of Quantum Electronics. 30:2500-2506 |
| ISSN: | 0018-9197 |
| Popis: | 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. > |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|