A5016824074- Advanced Fiber Optic Sensors
- Mechanical and Optical Resonators
- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Advanced Sensor and Control Systems
- Gas Dynamics and Kinetic Theory
- Analytical Chemistry and Sensors
- Fluid Dynamics and Mixing
- Flow Measurement and Analysis
- Photoacoustic and Ultrasonic Imaging
Harbin Institute of Technology
2022-2025
Guizhou Institute of Technology
2025
Abstract Forward‐stimulated Brillouin scattering (FSBS) in optical waveguides is a nonlinear effect that involves the acousto‐optic interaction between co‐propagating light and guided acoustic waves, showcasing significant potential for applications integrated photonic sensing fields. However, resonance frequency of waves stimulated by FSBS highly sensitive to fluctuations ambient temperature, leading uncertainty evaluation system. Herein, novel mechanism “athermal FSBS” proposed, where...
Forward stimulated Brillouin scattering (F-SBS) has gained rapid development due to its innovative capabilities such as detecting the mechanical properties of materials surrounding optical fibers. However, capability current schemes measure ultra-weak F-SBS signals remains inadequate, which is fatal for sensors with high spatial recognition and precise measurement. Here, we proposed an enhanced detection scheme based on selective sideband amplification. The transverse acoustic waves (TAWs)...
The uncoated single-mode fiber has been extensively researched as an opto-mechanical sensor since it can achieve substance identification of the surrounding media by exciting and detecting transverse acoustic waves via forward stimulated Brillouin scattering (FSBS), but danger being easily broken. Although polyimide-coated fibers are reported to allow transmission through coating reach ambient while maintaining mechanical properties fiber, still suffers from problems hygroscopic property...
Quasi-acoustic impedance matching of forward stimulated Brillouin scattering in aluminized coating optical fiber is demonstrated for the first time, achieving distributed identification air and water around with a spatial resolution 2 m.
An enhanced method for opto-mechanical sensing is proposed, and a fiber segment of 8cm in liquids identified using Sagnac interferometer, which an order magnitude improvement over the previous extreme performance 80cm.
An efficient scheme for forward stimulated Brillouin scattering by amplification is proposed, and a spatial recognition capability of 3mm achieved in air, which 2 orders magnitude higher than the previous reported.
Abstract The uncoated optical fiber has been extensively researched as an optomechanical sensor since it can achieve substance identification of the surrounding media by exciting and detecting transverse acoustic waves via forward stimulated Brillouin scattering (FSBS), yet within danger being easily broken. Although polyimide-coating fibers are reported to allow transmission coating for reaching ambient while maintaining mechanical properties fiber, still suffers from problems humidity...