SMS fibre structure for temperature measurement using a simple intensity-based interrogation system

Hatta, Agus Muhamad; Rajan, Ginu; Semenova, Yuliya; Farrell, Gerald

doi:10.1049/el.2009.1822

Cited by 38 publications

(25 citation statements)

References 7 publications

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“…A variety of fibre optic sensors incorporating microfabrication techniques have been recently developed for a wide range of applications including measurements of refractive index (chemical) [1], curvature (shape) [2], temperature [3], humidity [4] and gas concentration [5]. Among them, optical fibre humidity sensors are commonly required in many industrial application fields including air conditioning, production, food processing, human breath rate monitoring, paper and textile production.…”

Section: Introductionmentioning

confidence: 99%

“…However, the high cost of interrogation and/or a complex fabrication processes has inhibited the development of these humidity sensors into commercially viable products. It is well established that a singlemode-multimode-singlemode (SMS) optical fibre structure as a sensor has unique merits such as ease of fabrication, high sensitivity and low-cost compared with other optical fibre structures [3,10,11]. However traditional SMS fibre structures display poor sensitivity to humidity, since the multimode fibre cladding prevents the evanescent wave from interacting with the surrounding environment.…”

Section: Introductionmentioning

confidence: 99%

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A Humidity Sensor Based on a Singlemode-Side Polished Multimode–Singlemode Optical Fibre Structure Coated with Gelatin

Wang

Farrell

Lewis

et al. 2017

J. Lightwave Technol.

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Abstract-A novel relative humidity sensor based on a singlemode-side polished multimode-singlemode (SSPMS) fibre structure coated with gelatin material is reported. The sensing principle and fabrication method of the proposed sensor are presented. The experimental method is demonstrated to provide the optimum thickness of coating layers in order to achieve the highest sensitivity of 0.14 dB/%RH and a fast response time of 1000 ms for a given RH sensing range. The developed humidity fibre optic sensor based on a gelatin coating shows great potential for many applications such as industrial production, food processing and environmental monitoring.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Humidity Sensor Based on a Singlemode-Side Polished Multimode–Singlemode Optical Fibre Structure Coated with Gelatin

Wang

Farrell

Lewis

et al. 2017

J. Lightwave Technol.

View full text Add to dashboard Cite

show abstract

“…This temperature dependence can also be exploited to develop a temperature sensor. Some techniques can be utilized to extract the temperature information from the SMS fiber structure sensor, for example by measuring the temperature-induced shift in the peak wavelength of its spectrum [12], an intensity-based interrogation system [13], or a ratiometric power interrogation system [14].…”

Section: Introductionmentioning

confidence: 99%

“…Techniques in [12][13][14] could only be used for single-point measurement. In some industrial processes or a structural health monitoring system, a multi-point or quasi-distributed temperature measurement system is needed [15,16].…”

Section: Introductionmentioning

confidence: 99%

SMS fiber structure for temperature measurement using an OTDR

et al. 2013

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Abstract:A singlemode-multimode-singlemode (SMS) fiber structure for temperature measurement using an optical time domain reflectometer (OTDR)-based interrogation system is proposed. A temperature measurement range of 40 ℃-195 ℃ with a resolution of 0.12 ℃ and a linearity of 0.992 could be achieved for the multimode fiber (MMF) graded index with a length of 60 mm. It was also demonstrated that two-point temperature measurement with two SMS fiber structures as temperature sensors could be made. The proposed temperature measurement system offered a high resolution and also benefited from a simple configuration with a capability of multi-point temperature measurement.

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“…A SMS fibre structure also has been demonstrated for applications such as a bandpass filter, strain and temperature sensors, a wavelength encoded temperature sensor, and an intensity based temperature sensor [3][4][5][6]. The SMS fibre structure is fabricated by splicing a specified length of a multimode fibre (MMF) between two singlemode fibres (SMF).…”

Section: Introductionmentioning

confidence: 99%

Polarization dependence of an edge filter based on singlemode–multimode–singlemode fibre

Hatta

Semenova

Rajan

et al. 2010

Optics & Laser Technology

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Abstract:The polarization dependent loss (PDL) of a singlemode-multimodesinglemode (SMS) fibre structure used as an edge filter is presented. Minor errors in the fabrication process for the SMS fibre structure can introduce SMS fibre core offsets. The PDL due to lateral and rotational core offsets is investigated numerically and experimentally. It is shown that small core offsets are necessary to achieve low PDL for a SMS fibre based edge filter. It is also demonstrated that when lateral core offsets are unavoidable, the PDL of a SMS edge filter can still be minimized by introducing a rotational core offset of 90 o .

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SMS fibre structure for temperature measurement using a simple intensity-based interrogation system

Cited by 38 publications

References 7 publications

A Humidity Sensor Based on a Singlemode-Side Polished Multimode–Singlemode Optical Fibre Structure Coated with Gelatin

A Humidity Sensor Based on a Singlemode-Side Polished Multimode–Singlemode Optical Fibre Structure Coated with Gelatin

SMS fiber structure for temperature measurement using an OTDR

Polarization dependence of an edge filter based on singlemode–multimode–singlemode fibre

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