Splicing point tapered fiber embedded in PDMS for high-reliability micro tactile force detection
Year: 2026
Type: article
Abstract: A micro tactile force sensor based on a splicing point tapered fiber embedded in polydimethylsiloxane (PDMS) is proposed. The synergy between the tapered splicing point and the mode-field mismatch structure effectively excites strong high-order modes, achieving a force sensitivity of up to 48.89 nm/N and a theoretical detection limit of 410 μN. Benefiting from its asymmetric fiber layout, the sensor exhibits highly distinct regional response characteristics, demonstrating strong potential for spatial region recognition. Furthermore, employing a machine learning framework for compensation substantially improves the long-term reliability of the sensor, reducing the maximum relative force detection error to 3.6% after compensation.
Source: Optics Express
DOI: 10.1364/oe.613642
Institution: Shandong University of Science and Technology
Language: English
Topic: Advanced Fiber Optic Sensors
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
Funders: National Natural Science Foundation of China, Natural Science Foundation of Shandong Province, Natural Science Foundation of Qingdao, State Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and Technology, National Key Research and Development Program of China
OpenAlex ID: W7222614818