Detection of volatile organic compounds with functionalized long-period gratings and micro-ring resonators

Saunders, John E.; Dreher, Marian; Barnes, Jack A.; Crudden, Cathleen M.; Brown, R. Stephen; Loock, Hans‐Peter; Xu, Dan‐Xia

doi:10.1109/ico-ip.2011.5953787

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…In this regard, two main groups can be distinguished depending on the implementation technology; fiber optic ring resonators (FORRs) and integrated optic ring resonators (IORRs). IORRs have a high wavelength separation between resonances in comparison with FORRs, however due to their reduced size, they are aimed to chemical measures [1,2], whereas FORRs allows measuring physical [3,4]as well as chemical [5] parameters.…”

Section: Introductionmentioning

confidence: 99%

Compound lasing fiber optic ring resonators for sensing

2014

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In this work, we present a new method for increasing simultaneously the sensitivity and interrogation stability of fiberoptic intensity sensors. The configuration is based on a double-coupler ring resonator. On one side, the attenuation sensitivity of the sensor is enhanced by placing it inside a ring resonator. On the other side, the stability of the interrogation method is rendered close to perfect by creating an external lasing ring resonator with matched spectral response. The resulting lasers allow the stable interrogation of the sensors with an impressive sensitivity enhancement. In our experiments, the dynamic range of the intensity sensor (and consequently its sensitivity) is increased 15 dB by using this laser-based interrogation system. Simultaneously, the instability of the system is reduced to ±0.05 dB. In comparison with systems based on external interrogation, our method is >100 times more stable and also simpler, as no wavelength tunable elements are required.

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Section: Introductionmentioning

confidence: 99%

Compound lasing fiber optic ring resonators for sensing

2014

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“…IORR sensors are mostly used for monitoring the resonance wavelength shift as a consequence of the refractive index variations in presence of e.g. chemical substances [6,7]. However the IORR size makes it unsuitable for measuring physical parameters such as strain or displacement.…”

Section: Introductionmentioning

confidence: 99%

Compound Lasing Fiber Optic Ring Resonators for Sensor Sensitivity Enhancement

Rota-Rodrigo

Gonzalez-Herraez

Lopez-Amo

2015

J. Lightwave Technol.

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In this study, a new method for increasing simultaneously the sensitivity and interrogation stability of fiber-optic intensity sensors is presented. The configuration is based on a double-coupler ring resonator. On one side, the attenuation sensitivity of the sensor is enhanced by placing it inside a ring resonator. On the other side, the stability of the interrogation method is widely improved by creating an external lasing ring resonator with matched spectral response. The combination of the wavelength selective response of the ring resonator and optical amplification from Er-doped fiber amplifier is used to create different fiber lasers. The resulting lasers present an impressive sensitivity enhancement and a dynamic range increment up to 15 dB. Simultaneously, the instability of the system is reduced to ±0.05 dB. In comparison with systems based on tunable laser interrogation, our method is >100 times more stable and also simpler, as no wavelength tunable elements are required

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Detection of volatile organic compounds with functionalized long-period gratings and micro-ring resonators

Cited by 2 publications

References 7 publications

Compound lasing fiber optic ring resonators for sensing

Compound lasing fiber optic ring resonators for sensing

Compound Lasing Fiber Optic Ring Resonators for Sensor Sensitivity Enhancement

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