Next Article in Journal
Quantifying Short-Term Urban Land Cover Change with Time Series Landsat Data: A Comparison of Four Different Cities
Next Article in Special Issue
Fluorescent Aptamer Immobilization on Inverse Colloidal Crystals
Previous Article in Journal
Tensor Approach to DOA Estimation of Coherent Signals with Electromagnetic Vector-Sensor Array
Previous Article in Special Issue
Field Evaluation of a Portable Whispering Gallery Mode Accelerometer
Article Menu

Export Article

Open AccessArticle
Sensors 2018, 18(12), 4321; https://doi.org/10.3390/s18124321

Experimental Demonstration of Temperature Sensing with Packaged Glass Bottle Microresonators

Fraunhofer Institute for Reliability and Microintegration, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
*
Author to whom correspondence should be addressed.
Received: 27 October 2018 / Revised: 23 November 2018 / Accepted: 3 December 2018 / Published: 7 December 2018
(This article belongs to the Special Issue Resonator Sensors 2018)
Full-Text   |   PDF [5767 KB, uploaded 10 December 2018]   |  

Abstract

Whispering gallery mode (WGM) glass bottle microresonators are potential highly sensitive structures for a variety of physical and bio-chemical sensing applications. In this paper, we experimentally demonstrate the practical use of glass bottle resonators as temperature sensors. The basic parameters, such as WGM resonance wavelengths, free spectral ranges, and Q factors, have been investigated by coupling light from a tapered fiber to the bottle structure. We show the spectral characteristics of the WGMs by choosing different bottle dimensions and taper diameters. For practical measurements, a robust 3D-printed package that includes the bottle resonator and the tapered fiber has been proposed. The packaged bottle has a central diameter Dc = 207 µm and a length L = 300 µm. Temperature sensing experiments were also performed. A linear response of the WGM shifts as a function of the temperature is confirmed. The fitted experimental data indicate a temperature sensitivity of 10.5 pm/K at λ ~ 1550 nm, resulting in a limit of detection of 0.06 K. These values can be compared with values reported for other WGM resonators. Additionally, bottle resonators are made with simple splicing methods and their assembly method can be easily defined due to large coupling tolerances. View Full-Text
Keywords: bottle microresonators; whispering gallery modes; temperature sensing; packaging; optical sensors; 3D printing bottle microresonators; whispering gallery modes; temperature sensing; packaging; optical sensors; 3D printing
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Herter, J.; Wunderlich, V.; Janeczka, C.; Zamora, V. Experimental Demonstration of Temperature Sensing with Packaged Glass Bottle Microresonators. Sensors 2018, 18, 4321.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top