A5114228989- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Advanced MEMS and NEMS Technologies
- Mechanical and Optical Resonators
- Advanced Optical Sensing Technologies
Yanshan University
2024-2025
State Key Laboratory of Metastable Materials Science and Technology
2024-2025
There are urgent needs for cryogenic temperature sensing in the monitoring of liquefied gas energy, spacecraft, and cryobiology, with properties electromagnetic immunity, chemical corrosion, high sensitivity, a wide measurement range. In this paper, we proposed an improved sensor sensitivity ultra-wide range based on Vernier effect (VE) fiber Bragg grating (FBG). Owing to amplifying VE cascaded Sagnac interferometers (CSIs), showed average 6.73 nm/K. FBG was used mark dip wavelength as it...
Fiber optic-based cryogenic temperature sensing has vital applications in aerospace, biomedicines, food, and energy storage. However, the current fiber sensors have problems of low sensitivity narrow range. In this study, we experimentally investigated based on an all-fiber Sagnac loop using a panda polarization maintaining (PPMF) Bragg grating (FBG). Modeling simulation PPMF under proved that it could be used for loop. FBG, which showed but linear response, was to mark dip wavelength as...
Panda polarization-maintaining few-mode optical fiber (PPMFMOF) has important research significance in the short distance transmission field owing to its advantages of weak nonlinear effects, which is benefit reduce use digital signal processing equipment. Designing a high-performance PPMFMOF quickly and efficiently expected yet challenging. In this article, we demonstrated forward design method for based on artificial neural network (ANN) solve problems inefficient time-consuming...