Kalyan Biswas, PhD, is an Assistant Professor in the ECE Department at MCKV Institute of Engineering in Liluah, Howrah, WB, India. Angsuman Sarkar, PhD, is a Professor in the ECE Department of the Kalyani Government Engineering College in Kalyani, Nadia, WB, India. He is a co-editor of the Wiley title Optical Switching: Device Technology and Applications in Networks (2022).