M, Sivasindhu, and P Samundiswary. “Performance Evaluation of GaAs Photonic Crystal Based Directional Coupler All Optical Switch”. International Journal of Engineering and Technology 7, no. 3.29 (August 24, 2018): 220–224. Accessed February 11, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/18799.