Alhasani M, tahreer. PDF Design Optical BPF Using Double Clad Fiber MZI for Free Space Optical Communication: Mohanad G. Khamees , Tahreer S. Mansour*. IJL [Internet]. 2022 Dec. 17 [cited 2025 Mar. 29];21(2):25-32. Available from: https://ijl.uobaghdad.edu.iq/index.php/IJL/article/view/340