Dynamic Behavior of Directly Modulated Semiconductor Laser Utilizing Optical Feedback | ||
| Albahir journal | ||
| Article 1, Volume 4, Issue 7, December 2016, Pages 109-115 | ||
| Authors | ||
| Mohammed A. Mahdi; Zainab A. Kadhim; Mohammed J. AbdulRazzaq | ||
| Abstract | ||
| In this work, dynamical behavior of directly modulated semiconductor laser utilizing optical feedback has been simulated using MATLAB software package. The results show that the carrier density and photon numbers have been increased with external optical feedback (external cavity). The effect of external mirror reflectivity on the output power has been studied and it’s found that as the reflectivity increased the output power was increased. Also, the effect of distance between semiconductor laser cavity and the optical external cavity has been studied and the maximum output power has been obtained at an external length of (0.7- 0.75) cm. | ||
| Keywords | ||
| semiconductor lasers; direct modulation; Optical feedback | ||
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