SHALLOW-TAPERED CHIRPED FIBER BRAGG GRATING SENSORS FOR DUAL REFRACTIVE INDEX AND TEMPERATURE SENSING
| dc.contributor.author | Ayupova, Takhmina | |
| dc.contributor.author | Shaimerdenova, Madina | |
| dc.contributor.author | Tosi, Daniele | |
| dc.date.accessioned | 2021-08-27T03:02:16Z | |
| dc.date.available | 2021-08-27T03:02:16Z | |
| dc.date.issued | 2021-05-24 | |
| dc.description.abstract | In this work, we present a gold-coated shallow-tapered chirped fiber Bragg grating (stCFBG) for dual refractive index (RI) and temperature sensing. The stCFBG has been fabricated on a 15-mm long chirped FBG, by tapering a 7.29-mm region with a waist of 39 µm. The spectral analysis shows two distinct regions: a pre-taper region, in which the stCFBG is RI-independent and can be used to detect thermal changes, and a post-taper region, in which the reflectivity increases significantly when the RI increments. We estimate the RI and thermal sensitivities as 382.83 dB/RIU and 9.893 pm/◦C, respectively. The cross-talk values are low (−1.54 × 10−3 dB/◦C and 568.1 pm/RIU), which allows an almost ideal separation between RI and thermal characteristics. The stCFBG is a compact probe, suitable for long-term and temperature-compensated biosensing and detection of chemical analytes. | en_US |
| dc.identifier.citation | Ayupova, T., Shaimerdenova, M., & Tosi, D. (2021). Shallow-Tapered Chirped Fiber Bragg Grating Sensors for Dual Refractive Index and Temperature Sensing. Sensors, 21(11), 3635. https://doi.org/10.3390/s21113635 | en_US |
| dc.identifier.issn | 1424-8220 | |
| dc.identifier.uri | https://doi.org/10.3390/s21113635 | |
| dc.identifier.uri | https://www.mdpi.com/1424-8220/21/11/3635 | |
| dc.identifier.uri | http://nur.nu.edu.kz/handle/123456789/5712 | |
| dc.language.iso | en | en_US |
| dc.publisher | MDPI AG | en_US |
| dc.relation.ispartofseries | Sensors;2021, 21(11), 3635; https://doi.org/10.3390/s21113635 | |
| dc.rights | Attribution-NonCommercial-ShareAlike 3.0 United States | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/3.0/us/ | * |
| dc.subject | Chirped fiber Bragg grating | en_US |
| dc.subject | Type of access: Open Access | en_US |
| dc.subject | Dual sensing | en_US |
| dc.subject | Fiber Bragg gratings | en_US |
| dc.subject | Fiber tapers | en_US |
| dc.subject | Optical fiber sensors | en_US |
| dc.subject | Refractive index sensor | en_US |
| dc.title | SHALLOW-TAPERED CHIRPED FIBER BRAGG GRATING SENSORS FOR DUAL REFRACTIVE INDEX AND TEMPERATURE SENSING | en_US |
| dc.type | Article | en_US |
| workflow.import.source | science |