Poster
15 June 2023 Development of a fluorescent-based miniaturized fiber optic pH sensor
Author Affiliations +
Conference Poster
Abstract
This study presents an assembly-free ball lens structure at the tip of tapered multimode optical fiber to enhance the light collection efficiency for pH measurements. A 35 µm diameter ball lens was fabricated at the sensor tip. In addition, a thin layer of fluorescence dye was mixed with sol-gel that formed at the fiber tip for pH sensing. The simulation result demonstrates the light propagation on the ball lens tip. The experiment results reveal that the proposed sensor has a rapid response time (< 3 seconds), high sensitivity, and pinpoint accuracy (±1.0%) in the pH range of 6.0-8.0.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bohong Zhang, Farhan Mumtaz, Muhammad Roman, Dinesh Alla, Rex E. Gerald, and Jie Huang "Development of a fluorescent-based miniaturized fiber optic pH sensor", Proc. SPIE 12532, Optical Waveguide and Laser Sensors II, 125320X (15 June 2023); https://doi.org/10.1117/12.2663886
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Fiber optics sensors

Fiber optics

Sensors

Luminescence

Cladding

Multimode fibers

Optical fibers

Back to Top