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A Temperature-Insensitive Cladding-Etched Fiber Bragg Grating Using a Liquid Mixture with a Negative Thermo-Optic Coefficient
- Title
- A Temperature-Insensitive Cladding-Etched Fiber Bragg Grating Using a Liquid Mixture with a Negative Thermo-Optic Coefficient
- Authors
- Kim, KT[Kim, Kwang Taek]; Kim, IS[Kim, In Soo]; Lee, CH[Lee, Cherl-Hee]; Lee, J[Lee, Jonghun]
- DGIST Authors
- Lee, CH[Lee, Cherl-Hee]; Lee, J[Lee, Jonghun]
- Issue Date
- 2012-06
- Citation
- Sensors, 12(6), 7886-7892
- Type
- Article
- Article Type
- Article
- Keywords
- Cladding Etched; Compensation; Fiber Bragg Grating (FBG); Negative Thermo-Optic Coefficient; Temperature Insensitive
- ISSN
- 1424-8220
- Abstract
- To compensate for the temperature dependency of a standard FBG, a cladding-etched FBG immersed with a liquid mixture having a negative thermo-optic coefficient is presented, and its characteristics are investigated. The Bragg wavelength of the cladding-etched FBG is shifted counter to the direction of the Bragg wavelength shift of a conventional FBG according to the mixing ratio of glycerin to water; thus, the temperature-dependent Bragg wavelength shift was almost compensated by using a liquid mixture of water (50%) and glycerin (50%) having the negative thermo-optic coefficient of -5 × 10-4 °C-1. © 2012 by the authors; licensee MDPI, Basel, Switzerland.
- URI
- http://hdl.handle.net/20.500.11750/3361
- DOI
- 10.3390/s120607886
- Publisher
- MDPI AG
- Related Researcher
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- Files:
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- Collection:
- Convergence Research Center for Future Automotive Technology1. Journal Articles
Division of IoT∙Robotics Convergence Research1. Journal Articles
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