Fabry-Perot cavity based on polymer FBG as refractive index sensor

Ferreira, Miguel F. S.; Statkiewicz-Barabach, Gabriela; Kowal, Dominik; Mergo, Paweł; Urbańczyk, Wacław; Frazão, Orlando

doi:10.1016/j.optcom.2017.03.011

Cited by 21 publications

(7 citation statements)

References 22 publications

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“…This configuration is very compact and works using a reflective configuration that makes it possible to work with an optical sensing probe, or optrode [22,[32][33][34][35][36][37]. As previously commented upon, in some approaches, the polymers work in support of active agents, such as luminescent materials or other elements [38].…”

Section: Introductionmentioning

confidence: 99%

In Situ Synthesis of Gold Nanoparticles in Layer-by-Layer Polymeric Coatings for the Fabrication of Optical Fiber Sensors

et al. 2022

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A new method is proposed to tune the interferometric response of wavelength-based optical fiber sensors. Using the nanoparticle in-situ synthesis (ISS) technique, it is possible to synthesize gold nanoparticles (AuNPs) within a pre-existing polymeric thin film deposited at the end-face of an optical fiber. This post-process technique allows us to adjust the optical response of the device. The effect of the progressive synthesis of AuNPs upon polymeric film contributed to a remarkable optical contrast enhancement and a very high tuning capability of the reflection spectra in the visible and near-infrared region. The spectral response of the sensor to relative humidity (RH) variations was studied as a proof of concept. These results suggest that the ISS technique can be a useful tool for fiber optic sensor manufacturing.

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Section: Introductionmentioning

confidence: 99%

In Situ Synthesis of Gold Nanoparticles in Layer-by-Layer Polymeric Coatings for the Fabrication of Optical Fiber Sensors

et al. 2022

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“…Fiber Bragg gratings are used for a variety of technological applications due to their small size, their compatibility with optical fibers which naturally comes with an ease in signal transmission and their ability for multiplexing. They have been used as temperature [1], refractive index [2][3][4] , strain [5] magnetic fields [6] and pressure sensors [7,8] and for measurements of windspeed, liquid levels, liquid density and specific gravity [9]. By using two gratings to form a Fabry-Perot cavity they have also shown the potential to function as narrowband filters [10,11].…”

Section: Introductionmentioning

confidence: 99%

Thermal tuning of a fiber-integrated Fabry-Pérot cavity

Singer¹,

Goetz²,

Prasad³

et al. 2021

Preprint

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Here, we present the thermal tuning capability of an alignment-free fiber-integrated Fabry-Perot cavity. The two mirrors are made of fiber Bragg gratings that can be individually temperature stabilized and tuned. We show the temperature tuning of the resonance wavelength of the cavity without any degradation of the finesse and the tuning of the individual stop bands of the fiber Bragg gratings. This not only permits for the cavity's finesse to be optimized post-fabrication but also makes this cavity applicable as a narrowband filter with a FWHM spectral width of 0.07 ± 0.02 pm and a suppression of more than -15 dB that can be wavelength tuned. Further, in the field of quantum optics, where strong light-matter interactions are desirable, quantum emitters can be coupled to such a cavity and the cavity effect can be reversibly omitted and re-established. This is particularly useful when working with solid-state quantum emitters where such a reference measurement is often not possible once an emitter has been permanently deposited inside a cavity.

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“…The interest in using polymer optical fibers (POFs) for telecommunications [1,2] and sensors [3][4][5][6] has grown in the last several years. These POFs possess different characteristics from silica fibers, such as their elastic properties [7], which allow them to work in different environments.…”

Section: Introductionmentioning

confidence: 99%

The Fiber Connection Method Using a Tapered Silica Fiber Tip for Microstructured Polymer Optical Fibers

Ferreira

Gomes

Kowal

et al. 2018

Fibers

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Abstract:In this work, an alternative method of coupling light into microstructured polymer fibers is presented. The solution consists in using a fiber taper fabricated with a CO 2 laser. The connection is formed by inserting a tapered silica tip into the holes of a microstructured polymer fiber. This alternative method is duly characterized and the feasibility of such fiber connection to enable the polymer fiber as a displacement sensor is also demonstrated.

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Fabry-Perot cavity based on polymer FBG as refractive index sensor

Cited by 21 publications

References 22 publications

In Situ Synthesis of Gold Nanoparticles in Layer-by-Layer Polymeric Coatings for the Fabrication of Optical Fiber Sensors

In Situ Synthesis of Gold Nanoparticles in Layer-by-Layer Polymeric Coatings for the Fabrication of Optical Fiber Sensors

Thermal tuning of a fiber-integrated Fabry-Pérot cavity

The Fiber Connection Method Using a Tapered Silica Fiber Tip for Microstructured Polymer Optical Fibers

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