Lee, JH Kim, J Han, YG Kim, SH Lee, SB 2024-01-21T07:10:04Z 2024-01-21T07:10:04Z 2021-09-02 2004-04-19 1094-4087 https://pubs.kist.re.kr/handle/201004/137665 We demonstrate a practical and simple, all fiber Bragg grating (FBG) based Raman laser sensing probe for long-distance, remote temperature sensing application. Using multiple laser cavities based on FBG's and a tunable chirped FBG, we obtain the simultaneous multichannel remote temperature sensing operation at a 50 km distance. The temperature sensitivity is measured to be 7.15 pm/degreesC. (C) 2004 Optical Society of America. English OPTICAL SOC AMER SENSORS Investigation of Raman fiber laser temperature probe based on fiber Bragg gratings for long-distance remote sensing applications Article 10.1364/OPEX.12.001747 1 OPTICS EXPRESS, v.12, no.8, pp.1747 - 1752 OPTICS EXPRESS 12 8 1747 1752 scie scopus 000220908100030 2-s2.0-2942702232 Optics Optics Article SENSORS