Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optimization of optical ring resonator devices for sensing applications

Not Accessible

Your library or personal account may give you access

Abstract

The Q-factor of an optical resonance device determines the width of its transmission resonances. For this reason, in sensing applications of optical resonators, it is commonly assumed that the Q-factor fully determines resonator sensitivity. Practically, the latter is not exactly correct. In this Letter, the parameters responsible for the sensitivity of resonance devices (i.e., the steepness and the sharpness of the transmission resonance) are analyzed. It is shown that, for given intrinsic losses of a single ring resonator sensor, the slope of the resonance is largest if its extinction ratio is 9.5dB, while the resonance is sharpest if its extinction ratio is 6dB. For a sensor consisting of several identical ring resonators coupled to a bus waveguide, the largest slope and sharpness parameters correspond to the extinction ratios of 9dB and 4.5dB, respectively. The determined optimum parameters can be achieved by tuning the coupling between the resonator rings and the waveguide.

© 2007 Optical Society of America

Full Article  |  PDF Article
More Like This
Optimization of resonant optical sensors

M. Sumetsky
Opt. Express 15(25) 17449-17457 (2007)

Design and optimization of liquid core optical ring resonator for refractive index sensing

Nai Lin, Lan Jiang, Sumei Wang, Hai Xiao, Yongfeng Lu, and Hai-Lung Tsai
Appl. Opt. 50(20) 3615-3621 (2011)

Application of dynamic line narrowing in resonant optical sensing

Fenfei Liu, Shoufeng Lan, and Mani Hossein-Zadeh
Opt. Lett. 36(22) 4395-4397 (2011)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (2)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (12)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved