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dc.contributor.authorSengupta, D.-
dc.contributor.authorSai Shankar, M.-
dc.contributor.authorSaidi Reddy, P.-
dc.contributor.authorSai Prasad, R.L.N.-
dc.contributor.authorNarayana, Narayana Ks.-
dc.contributor.authorKishore, Kishore P.-
dc.date.accessioned2025-02-05T10:02:24Z-
dc.date.available2025-02-05T10:02:24Z-
dc.date.issued2011-11-
dc.identifier.citation10.1117/12.904606en_US
dc.identifier.urihttp://localhost:8080/xmlui/handle/123456789/3124-
dc.descriptionNITWen_US
dc.description.abstractFiber Bragg Gratings have been shown to have a much improved thermal sensitivity when coated by Polymethyle methacrylate (PMMA) at cryogenic regime has been proposed. The PMMA has large thermal expansion coefficients and acts as driving elements. It is coated on the FBG at room temperature and the FBG is under compression at lower temperatures. This allows a much wider tuning of Bragg grating as fiber can stand at more compression than tension. An overall sensitivity of 0.039nm/K in the 1550nm wavelength regime has been achieved and the Bragg wavelength has been tuned upto 8.97nm in the temperature range 77K to 303Ken_US
dc.language.isoenen_US
dc.publisherProceedings Volume 8311, Optical Sensors and Biophotonics III;en_US
dc.subjectBragg gratingen_US
dc.subjectPMMA coatingen_US
dc.titleAn improved low temperature sensing using PMMA coated FBGen_US
dc.typeOtheren_US
Appears in Collections:Physics

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