Hemed, Ayser A. H., and Adnan H. Mohammad. “Studying Laser Diode Dynamics With Optical Feedback from 20cm Free Space External Resonator”. Ibn AL-Haitham Journal For Pure and Applied Sciences 29, no. 2 (March 9, 2017): 91–103. Accessed April 4, 2025. https://jih.uobaghdad.edu.iq/index.php/j/article/view/88.