Photonic Crystal Based All-Optical Switch Using a Ring Resonator and Kerr Effect

ABSTRACTThis paper proposes an all-optical switch using Kerr-type nonlinearity based on a photonic crystal ring resonator (PCRR). For the first time, the bar state and cross-state operation with 2 × 2 elements of an optical switch is implemented using a nonlinear ring resonator. Chalcogenide glass rods are used in the air background to simulate the proposed structure. The operating wavelength for this structure is calculated to be 1551 nm using the finite element method. The functional parameters such as the extinction ratio, response time, bit rate, crosstalk, and insertion loss values are studied using the finite-difference time-domain (FDTD) method. The presented structure design has a fast data rate of 0.46 Tbps, a low crosstalk value of −17.14 dB, and a fast response time of 2.16 ps. The proposed optical switch has a total footprint of about 398.56 μm2. The device's performance makes it suitable for switching applications and integration in all-optical circuits.KEYWORDS: Photonic crystalRing resonatorsFDTDNonlinear kerr effectOptical switch AcknowledgmentPriyanka Kumari Gupta acknowledges the Institute fellowship from IIIT-Naya Raipur, Chhattisgarh -493661, INDIA, for financial assistance.Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationNotes on contributorsPriyanka Kumari GuptaPriyanka Kumari Gupta completed her B.Sc. in Physics(H) from DAV College, Koraput in 2015 and M.Sc. in Physics from Andhra University, Visakhapatnam in 2017. She qualified for CSIR NET(LS) Dec 2019 in Physical Science and Gate 2020 in Physics. She is currently pursuing the Ph.D. degree with IIIT Naya Raipur. Her area of research includes Photonic Crystals, all-optical devices, and nonlinear optics.Punya Prasanna PaltaniPunya P. Paltani is an Assistant Professor of Physics in the Science and Mathematics discipline. Prior to joining IIIT-NR, he was an Assistant Professor at Mody University, Rajasthan. He is a lifetime member of the Indian Physics Association, the Optical Society of India, member of Optical Society of America, and IEEE. He was awarded CSIR Fellowship for doctoral research and TUBITAK Fellowship (by TURKISH Govt.) for Post-Doctoral research. His research interests are Nonlinear optics, Photonics, Plasmonics and Photonic crystals.Shrivishal TripathiShrivishal Tripathi is working as an assistant professor of Electronics and Communication Engineering. Prior to joining IIIT-NR, he was with BITS- Pilani, Hyderabad and NIIT University, Neemrana as an Assistant Professor. He is a member of IEEE society and MTT society. His research interests include Ultrawideband (UWB) Antennas, MIMO Antenna, Antenna for 5G/IoT, Artificial Intelligence in Electromagnetics, Machine/Deep Learning in RF Circuit Design, Energy Harvesting, Radar, Signal Modulation/Demodulation Techniques, and Ad-hoc Network.