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Updated: Jan 28, 2026

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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Integrated Optic Sensing Spectrometer: Concept and Design.

Gloria Micó1, Bernardo Gargallo2, Daniel Pastor3

  • 1Photonics Research Labs, Universitat Politècnica de València, c/ Camino de Vera s/n, 46021 Valencia, Spain. glomica@iteam.upv.es.

Sensors (Basel, Switzerland)
|March 2, 2019
PubMed
Summary
This summary is machine-generated.

This paper introduces the integrated optics sensing spectrometer (IOSS), a novel device for absorption spectroscopy. It uses an arrayed waveguide grating to simultaneously measure sample and reference spectra for solute concentration determination.

Keywords:
absorption spectroscopyevanescent-field sensingintegrated optical sensor

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Area of Science:

  • Optoelectronics
  • Spectroscopy
  • Chemical Sensing

Background:

  • Integrated optics offers miniaturization and enhanced sensitivity for sensing applications.
  • Spectrometric analysis is crucial for quantitative chemical detection.

Purpose of the Study:

  • To present the concept and design of an integrated optical device for sensing and spectrometric analysis.
  • To enable simultaneous measurement of sensing and reference spectra for improved accuracy.

Main Methods:

  • Design of a modified arrayed waveguide grating (AWG) with two sets of arms at different focal points.
  • Engineering half of the AWG arms to be exposed to the outer media for sensing.
  • Isolating the other half of the AWG arms to serve as a reference.

Main Results:

  • The developed device, termed integrated optics sensing spectrometer (IOSS), provides both sensing and reference spectra.
  • Two reference designs are proposed for visible and near-infrared wavelengths.
  • The device is suitable for determining solute concentrations via absorption spectroscopy.

Conclusions:

  • The IOSS concept provides a robust platform for integrated optical sensing and spectrometric analysis.
  • The design facilitates accurate solute concentration determination through differential spectral measurements.
  • This technology holds promise for various applications in chemical analysis and monitoring.