S.W, Harun, Tamchek N, Teyo T.C, Poopalan P, and Ahmad H. “-L-Band Ring Erbium Doped Fiber Amplifier With Fiber Bragg Grating”. Malaysian Journal of Science 21, no. 1&2 (April 25, 2002): 115–121. Accessed December 22, 2024. https://juku.um.edu.my/index.php/MJS/article/view/8597.