Thermally Stable Refractometer Using Capillary-Based Structural Long-Period Gratings
- Resource Type
- Conference
- Authors
- Tang, Mengxue; Zhao, Yunhe; Hua, Ziyang; Chen, Shiqi; Yang, Yongsheng; Liu, Yunqi; He, Zuyuan
- Source
- 2022 20th International Conference on Optical Communications and Networks (ICOCN) Optical Communications and Networks (ICOCN), 2022 20th International Conference on. :1-3 Aug, 2022
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Temperature sensors
Temperature
Sensitivity
Stability criteria
Refractive index
Optical fiber networks
Fiber gratings
Capillary
refractometer
long-period gratings
- Language
- ISSN
- 2771-3059
We propose a thermally stable refractometer based on capillary with arc-discharge-induced structural long-period gratings (SLPGs) between two single-mode fibers. Transmission spectral performances of the SLPGs were investigated theoretically and experimentally. The refractive index (RI) sensing characteristics of SLPGs with period of 1 mm and period number of 4 were further studied, showing a maximum RI sensitivity of 8409.2 nm/RIU in the RI region of 1.435-1.443. In addition, the proposed SLPGs presents thermally stable to temperature variations. Therefore, the proposed capillary-based refractometer can be potential in the application of environmental monitoring.