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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
Published on: January 7, 2019
Fiber optic-based refractive index sensing at INESC Porto
Pedro A S Jorge1, Susana O Silva, Carlos Gouveia
1INESC Porto, Porto 4169-007, Portugal. pjorge@inescporto.pt
Sensors (Basel, Switzerland)
|September 13, 2012
Summary
This review covers optical fiber sensors for refractive index measurement, highlighting techniques like gratings, interferometers, and plasmonics. It focuses on advancements and results from INESC Porto.
Area of Science:
- Photonics and Optical Engineering
- Sensing Technologies
Background:
- Refractive index measurement is crucial for material characterization and sensing.
- Optical fiber sensors offer advantages like remote sensing and immunity to electromagnetic interference.
Purpose of the Study:
- To review advancements in optical fiber sensor configurations for refractive index measurement.
- To highlight key techniques and results, particularly those from INESC Porto.
Main Methods:
- Review of sensing structures including Bragg gratings, long period gratings, and micro-interferometers.
- Investigation of plasmonic effects and multimode interference in various optical fibers.
- Analysis of standard and microstructured optical fiber applications.
Main Results:
- Demonstration of diverse optical fiber sensor designs for refractive index sensing.
- Showcasing of high-performance results achieved with different sensing mechanisms.
- Compilation of developments in the field, with a focus on INESC Porto's contributions.
Conclusions:
- Optical fiber sensors provide versatile and effective platforms for refractive index measurement.
- Continued innovation in fiber sensor design and materials promises enhanced sensing capabilities.
- The reviewed techniques offer a broad toolkit for various refractive index sensing applications.
