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Related Experiment Video

Updated: Feb 14, 2026

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

Published on: July 26, 2016

Evanescent field refractometry in planar optical fiber.

Christopher Holmes, Alexander Jantzen, Alan C Gray

|February 15, 2018

Summary

This study presents a robust integrated optical fiber refractometer using flame hydrolysis deposition (FHD). This new platform offers high sensitivity and survivability in extreme temperatures and harsh chemical environments.

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Last Updated: Feb 14, 2026

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

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Published on: July 26, 2016

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

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Published on: November 7, 2016

Design and Fabrication of an Optical Fiber Made of Water

Design and Fabrication of an Optical Fiber Made of Water

Published on: November 8, 2018

Area of Science:

Optoelectronics
Materials Science
Fiber Optics

Background:

Refractometers are crucial for measuring refractive index.
Traditional fiber optic refractometers may lack durability in harsh conditions.
Integrated optical platforms offer potential for enhanced sensor performance.

Purpose of the Study:

To demonstrate a novel integrated optical fiber refractometer.
To highlight the survivability of the platform in harsh environments.
To compare the performance of the developed refractometer with existing technologies.

Main Methods:

Fabrication of an integrated optical fiber platform using flame hydrolysis deposition (FHD).
Planarization of an SMF-28 fiber to 8 μm diameter.
Integration of fiber Bragg gratings (FBGs) for refractive index monitoring.

Main Results:

The developed refractometer demonstrates survivability at temperatures up to 1000°C and resistance to common solvents.
The platform exhibits comparable sensitivity to alternative FBG refractometers.
The integrated optical fiber refractometer shows mechanical robustness.

Conclusions:

The FHD-based integrated optical fiber platform provides a mechanically robust refractometer.
This technology offers a durable solution for refractive index sensing in harsh environments.
The developed refractometer presents a viable alternative with enhanced environmental resistance.