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Temperature sensor based on multi-layer MoS2 coated etched fiber Bragg grating
, S. Sebastian, A.S. Asokan
Published in OSA - The Optical Society
2019
PMID: 30694236
Volume: 58
   
Issue: 3
Pages: 535 - 539
Abstract
The development of an etched fiber Bragg grating (eFBG)-based temperature sensor with a uniform multi-layer molybdenum-di-sulphide (MoS2) coating is presented in this paper. Multi-layer MoS2 has been coated on clad etched FBG sensors by DC magnetron sputtering of molybdenum (Mo) and subsequent sulfurization. The dependence of temperature sensitivity on the coating thickness of MoS2 on eFBGs has been tested from room temperature to 100°C. It has been found that MoS2 coated clad etched FBG sensors with a coating thickness of around 10 nm exhibit a maximum temperature sensitivity of ∼95 pm∕°C (almost one order higher than that of bare fiber Bragg gratings), with a resolution of ∼0.01°C obtained using an FBG interrogator with 1 pm resolution. © 2019 Optical Society of America.
About the journal
JournalData powered by TypesetApplied Optics
PublisherData powered by TypesetOSA - The Optical Society
ISSN1559128X
Impact Factor1.230
Citation Styleunsrt
Sherpa RoMEO Archiving PolicyGreen