Semiconductor Physics, Quantum Electronics & Optoelectronics, 20 (4), P. 442-446 (2017).

Modeling of ionizing radiation effect on static and dynamic behavior of vertical cavity surface emitting lasers
Sh.M. Eladl, K.A. Sharshar

Radiation Eng. Dept., NCRRT, Atomic Energy Authority, P. O. Box 29, 3 Ahmed Elzomor str., 8th sector, Nasr city, Cairo, Egypt.

Abstract. In this work, the effect of ionizing radiation on static and dynamic behavior of Vertical Cavity Surface Emitting Laser (VCSEL) was investigated numerically. First, the model of dynamic behavior before irradiation has been analyzed based on Convolution Theorem. Second, all interesting ionizing radiation sensitive factors are compared with their corresponding post irradiation factors. The convolution theorem is applied to get features of dynamic behavior. All interesting parameters have been outlined. The effect of resonance frequency and damping parameters have been studied. The results show that static and dynamic response of these devices are dramatically deteriorated due to irradiation flux. The device gradually changes its mode of operation from lasing mode to LED mode by exhibiting weak oscillation of the output and fast damping with the increase of ionizing radiation. This type of model can be used for high data bit rate in multimode optical fiber network.

Keywords: vertical cavity surface emitting laser, ionizing radiation, LED.

Full Text (PDF)

Back to Volume 20 N4

Creative Commons License
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.