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Updated: Jan 28, 2026

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
Published on: January 7, 2019
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.
Abstract:
In this paper the concept and design of an integrated optical device featuring evanescent field sensing and spectrometric analysis is presented. The device, termed integrated optics sensing spectrometer (IOSS), consists of a modified arrayed waveguide grating (AWG) which arms are engineered into two sets having different focal points. Half of the arms are exposed to the outer media, while the other half are left isolated, thus the device can provide both sensing and reference spectra. Two reference designs are provided for the visible and near-infrared wavelengths, aimed at the determination of the concentration of known solutes through absorption spectroscopy.
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