In-Fiber Closed Cavity Interferometric High-Resolution Aqueous Solution and Alcohol Gas Refractometer

Li, Lijun; Xu, Tianzong; Liu, Yinming; Zhang, Zhaochuan; Ma, Qiang; Shi, Zhongyuan; Jia, Weikang; Sun, Jiandong; Yu, Fei; Mangue, Paulino Mba Ndong

doi:10.3390/s19102319

Cited by 10 publications

(3 citation statements)

References 22 publications

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“…There, the high intracavity intensity along with the preferred emission into cavity modes is used to enhance the emission of Raman scattering from atmospheric gases. Fiber-based sensing of substances is however not limited to gaseous media, but can also be used with liquid solutions in absorption-measurement-based [87] or refractometer-based schemes [88].…”

Section: Cavity-enhanced Sensing and Other Applicationsmentioning

confidence: 99%

Achievements and perspectives of optical fiber Fabry–Perot cavities

et al. 2022

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Fabry–Perot interferometers have stimulated numerous scientific and technical applications ranging from high-resolution spectroscopy over metrology, optical filters, to interfaces of light and matter at the quantum limit and more. End facet machining of optical fibers has enabled the miniaturization of optical Fabry–Perot cavities. Integration with fiber wave guide technology allows for small yet open devices with favorable scaling properties including mechanical stability and compact mode geometry. These fiber Fabry–Perot cavities (FFPCs) are stimulating extended applications in many fields including cavity quantum electrodynamics, optomechanics, sensing, nonlinear optics and more. Here we summarize the state of the art of devices based on FFPCs, provide an overview of applications and conclude with expected further research activities.

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Section: Cavity-enhanced Sensing and Other Applicationsmentioning

confidence: 99%

Achievements and perspectives of optical fiber Fabry–Perot cavities

et al. 2022

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Section: Cavity-enhanced Sensing and Other Applicationsmentioning

confidence: 99%

Achievements and Perspectives of Optical Fiber Fabry-Perot Cavities

Pfeifer,

Ratschbacher,

Gallego

et al. 2021

Preprint

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Fabry-Perot interferometers have stimulated numerous scientific and technical applications ranging from high resolution spectroscopy over metrology, optical filters to interfaces of light and matter at the quantum limit and more. End facet machining of optical fibers has enabled the miniaturization of optical Fabry-Perot cavities. Integration with fiber wave guide technology allows for small yet open devices with favorable scaling properties including mechanical stability and compact mode geometry. These Fiber Fabry-Perot Cavities (FFPCs) are stimulating extended applications in many fields including cavity quantum electrodynamics, optomechanics, sensing, nonlinear optics and more.Here we summarize the state of the art of devices based on Fiber Fabry-Perot Cavities, provide an overview of applications and conclude with expected further research activities.

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“…So far, RI resolutions of mFBG, LPG and microfibers Sagnac loop sensors usually can get 10 −2 −10 −3 , 10 −3 −10 −4 and 10 −5 −10 −6 , respectively. Meanwhile, the RI resolution of other optical fiber sensors (such as special fiber structure [14], taper fiber structure [15], and FBG [16] and other structures [17,18]) are always lower than 10 −5 . The main reason of microfiber Sagnac loop sensor presents more higher RI resolution than others is due to higher order cladding modes can be excited by the microfibers with micrometer diameter.…”

mentioning

confidence: 99%

High stability microfiber Sagnac loop liquid refractive index sensor with FBG mode selecting

Li¹,

Jia²,

Xu³

et al. 2022

J. Inst.

Self Cite

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As a high-resolution sensor, it is very important to improve the spectral stability of microfiber Sagnac loop interferometer. A fiber Bragg grating (FBG) mode selecting method is proposed and demonstrated. The method can filter out some cladding modes by FBG in the Sagnac loop and make working modes energy more concentrated, which shows that the interference spectrum becomes more uniform. At the same time, the sensitivity and linearity of the sensor can be improved slightly by this method. In our experiment, the resolution of sensor can get 1.41 × 10-5 ∼ 7.49 × 10-6 in the liquid refractive index range of 1.3330∼1.38481. Moreover, this method can effectively improve the spectral stability of the interferometer, which shows that the dip wavelength absolute error of time fluctuation is improved from ±0.358 nm to 0.021 nm and from ±0.116 nm to 0.000 nm at 1536.6 nm and 1559.9 nm initial dip wavelength, respectively. This method also has advantages of compact structure, good mechanical properties, and easy preparation. On this basis, the FBG also can be replaced by various modes filters to develop more multifunctional high stability interferometers according to the detection needs.

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In-Fiber Closed Cavity Interferometric High-Resolution Aqueous Solution and Alcohol Gas Refractometer

Cited by 10 publications

References 22 publications

Achievements and perspectives of optical fiber Fabry–Perot cavities

Achievements and perspectives of optical fiber Fabry–Perot cavities

Achievements and Perspectives of Optical Fiber Fabry-Perot Cavities

High stability microfiber Sagnac loop liquid refractive index sensor with FBG mode selecting

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