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

Integrated optical switches and gas sensors

Not Accessible

Your library or personal account may give you access

Abstract

We have demonstrated new switching and gas-sensing effects in integrated optics using input and output grating couplers and Bragg reflector gratings with 1200 lines/mm on planar SiO2–TiO2 waveguides. Switching is actuated by adsorption or desorption of water or other adsorbates on the waveguide surface through a change in the effective index of the guided modes under the grating. We derived theoretically the ultimate sensitivity limits of the grating devices employed either as switches or as gas sensors. Switching requires the adsorption and desorption, respectively, of less than one H2O monolayer. Sensors can detect variations in surface coverage of 1/100 of an H2O monolayer.

© 1984 Optical Society of America

Full Article  |  PDF Article
More Like This
Sensitivity of grating couplers as integrated-optical chemical sensors

K. Tiefenthaler and W. Lukosz
J. Opt. Soc. Am. B 6(2) 209-220 (1989)

Effects of Langmuir–Blodgett-film gas sensors with integrated optical interferometers

Chen Fushen, Liu Yunqi, Xu Yu, and Liang Qu
Opt. Lett. 21(20) 1700-1702 (1996)

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 (4)

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 (13)

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