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Investigation on ultra-compact 2D-PC based optical circulator for photonic integrated circuits



  1. Department of Electronics and Communication Engineering, Mount Zion College of Engineering and Technology, Pudukkottai-622 507,TamilNadu, India


In this attempt, Two Dimensional Photonic Crystals (2DPC) based three-port and four-port circulator areproposed and designed. The performance parameters of circulators namely, insertion loss, isolation and transmission efficiency are estimated. The circulator is designed usingasquare lattice of silicon rods intheair. In this structure, a defect is introduced which is made of ferrite material to obtain the non-reciprocal transmission of the optical signal. The Photonic Band Gap (PBG) range of the device is accomplished through Plane Wave Expansion (PWE) method and by applyingtheFinite Difference Time Domain (FDTD) method the transmission spectra of the proposed circulator areobtained. The size of the circulator is about 12μm×12μm. Theproposed device will be used for future optical networks and telecommunication applications..


Photonic crystal, Photonic band gap, Circulator, PWE, FDTD, Ferrite materials.

Submitted at: March 14, 2020
Accepted at: April 8, 2021


R. ARUNKUMAR, S. ROBINSON, Investigation on ultra-compact 2D-PC based optical circulator for photonic integrated circuits, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 3-4, pp. 112-118 (2021)