Md Johari, Md Ashadi and Jali, Mohd Hafiz and Pour, Meisam Parsa and Al Noman, Abdullah and Abdul Khudus, Muhammad Imran Mustafa and Maslinda, M. S. and Mohd Ali, Ummu Umairah (2020) Effect Of PMMA And PVA Coating On The Performance Of Optical Microbottle Resonator Humidity Sensors. Microwave And Optical Technology Letters, 62 (3). pp. 993-998. ISSN 0895-2477
![[img]](http://eprints.utem.edu.my/style/images/fileicons/text.png) |
Text
10.1002@MOP.32133.PDF Restricted to Registered users only Download (1MB) |
Abstract
This article compares the performances of uncoated and coated optical microbottle resonators (MBR) for humidity sensing. A technique called “soften-and-compress” was used to form the MBR with midriff diameter of Db = 190 μm, stem diameter of Ds = 125 μm and bottle length of Lb = 182 μm. The MBRs were prepared in three different conditions, which are noncoated MBR, PMMA (poly methyl meth acrylate) coated MBR, and PVA (polyvinyl-alcohol) coated MBR. The MBRs characteristic was investigated by employing a 2 μm tapered microfiber and tested for humidity sensing within a humidity range of 40% to 95%. The Q-factor obtained were >104 for all MBRs. The performance as humidity sensor was defined by the sensitivity and linearity of MBRs, which were investigated based on wavelength shift and also the transmitted power. The MBRs are undergoing a 180-seconds stability test at 65% RH humidity level. It is found that the PVA coated MBR performed better than other MBRs as a humidity sensor based on sensitivity, linearity, and stability measurements.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Humidity Sensor, Optical Microresonator, Microfiber Optic |
| Divisions: | Faculty of Electrical and Electronic Engineering Technology > Department of Electronic and Computer Engineering Technology |
| Depositing User: | F Haslinda Harun |
| Date Deposited: | 03 Sep 2021 16:27 |
| Last Modified: | 03 Sep 2021 16:27 |
| URI: | http://eprints.utem.edu.my/id/eprint/25258 |
| Statistic Details: | View Download Statistic |
Actions (login required)
 |
View Item |