Enhanced resonances by waveguide wrapping of a bulbed microring resonator

Document Type

Article

Publication Date

4-1-2022

Abstract

A high Q-factor novel bulb design, to the best of our knowledge, inspired by the well-studied pulley microring resonator (MRR), is demonstrated and compared with circle and racetrack MRRs at wavelengths of 1.45-1.65 mu m. A wrapping of 60% around the ring showed a three times Q-factor increment ( Q = 828) compared to a standard circle MRR (Q = 206) at a telecom wavelength of 1.55 mu m with a fixed ring radius of 2 while further increasing the wrapping at 80% shows a decrease in its Q-factor (Q = 454). A comparison of the wavelength dependence of the bulb design with other typical MRR designs suggests that bulb designs are highly sensitive to wavelength and have very high Q-factors at lower wavelengths. (C) 2022 Optica Publishing Group

Keywords

Resonances, Waveguide wrapping, Bulbed microring resonator

Publication Title

Applied Optics

Divisions

PHYSICS

Funders

Ministry of Education, Malaysia (LRGS/1/2020/UM/01/5/1)

Volume

61

Issue

11

Publisher

Optical Publishing Group

Publisher Location

2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA

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