Next Article in Journal
Modeling of Thermal Phase Noise in a Solid Core Photonic Crystal Fiber-Optic Gyroscope
Next Article in Special Issue
A Laboratory Experimental Study: An FBG-PVC Tube Integrated Device for Monitoring the Slip Surface of Landslides
Previous Article in Journal
Inferring Interaction Force from Visual Information without Using Physical Force Sensors
Previous Article in Special Issue
Low-Cost Interrogation Technique for Dynamic Measurements with FBG-Based Devices
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(11), 2459; https://doi.org/10.3390/s17112459

Waveguide Bragg Gratings in Ormocer®s for Temperature Sensing

1
Applied Laser and Photonics Group, University of Applied Sciences Aschaffenburg, 63743 Aschaffenburg, Germany
2
Chair of Electron Devices, Friedrich-Alexander University Erlangen, 91058 Erlangen, Germany
3
Fraunhofer Institute for Integrated Systems and Device Technology (IISB) Erlangen, 91058 Erlangen, Germany
*
Author to whom correspondence should be addressed.
Received: 28 September 2017 / Revised: 17 October 2017 / Accepted: 20 October 2017 / Published: 26 October 2017
(This article belongs to the Special Issue Fiber Bragg Grating Based Sensors)
Full-Text   |   PDF [1657 KB, uploaded 28 October 2017]   |  

Abstract

Embedded channel waveguide Bragg gratings are fabricated in the Ormocer® hybrid polymers OrmoComp®, OrmoCore, and OrmoClad by employing a single writing step technique based on phase mask technology and KrF excimer laser irradiation. All waveguide Bragg gratings exhibit well-defined reflection peaks within the telecom wavelengths range with peak heights of up to 35 dB and −3 dB-bandwidths of down to 95 pm. Furthermore, the dependency of the fabricated embedded channel waveguide Bragg gratings on changes of the temperature and relative humidity are investigated. Here, we found that the Bragg grating in OrmoComp® is significantly influenced by humidity variations, while the Bragg gratings in OrmoCore and OrmoClad exhibit linear and considerably high temperature sensitivities of up to −250 pm/ C and a linear dependency on the relative humidity in the range of −9 pm/%. View Full-Text
Keywords: Bragg grating; temperature; humidity; hybrid polymer; Ormocer® Bragg grating; temperature; humidity; hybrid polymer; Ormocer®
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

Girschikofsky, M.; Rosenberger, M.; Förthner, M.; Rommel, M.; Frey, L.; Hellmann, R. Waveguide Bragg Gratings in Ormocer®s for Temperature Sensing. Sensors 2017, 17, 2459.

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