M.M. Ameen SMA, H. Mansour M. A Simple and General Analytical Expression for Calculating Crosstalk in Multiwaveguide Directional Couplers Using Finite Differences Method. JK-Physics [Internet]. 2020 Jan. 27 [cited 2024 May 18];11(02):6-14. Available from: https://journal.uokufa.edu.iq/index.php/jkp/article/view/7395