Temperature dependence of light power propagation in bending plastic optical fiber

Ning, Jing; Teng, Chuanxin; Zheng, Jie; Wang, Guanjun; Zhang, Minjuan; Wang, Zhibin

doi:10.1016/j.yofte.2016.05.006

Cited by 9 publications

(4 citation statements)

References 14 publications

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“…The decrease of power loss also due to the negative TOC of the POF. Since the absolute TOC of the core is smaller than that of cladding, it increases the numerical aperture [25][26] [27]. The peak wavelengths corresponding to each temperature value, obtained from three cycles of measurement, were averaged and then plotted against temperature to obtain the sensor's calibration curve.…”

Section: Resultsmentioning

confidence: 99%

Characterization of Temperature Response of Asymmetric Tapered-Plastic Optical Fiber-Mach Zehnder Interferometer

Yulianti

Putra

Fianti

et al. 2020

J. Penelit. Fis. Apl.

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Temperature measurement is important in various applications; therefore, various temperature sensors have been developed. Due to its advantages, many optical fiber-based temperature sensors have been proposed. The wavelength modulation-based optical sensor is interesting due to high accuracy. However, the complex fabrication process and high cost limit the advantages of the sensors. Therefore, we proposed a simple and low-cost Mach Zehnder interferometer (MZI) sensor using step-index plastic optical fiber (SI-POF). Performance characterization of the sensor to temperature variation is presented. The sensor consists of two tapers at several distances, forming an interferometer. The first taper was designed to be steep to allow excitation of cladding modes, while the second taper was gradual to suppress power loss. Characterizations were done in terms of sensitivity, hysteresis, and repeatability by analyzing the output spectrums recorded by the spectrometer at various environment temperatures, 35oC to 85oC, with an increment of 10oC. The results showed that the sensor has a sensitivity of 0.0431 nm/oC and a correlation coefficient of 0.9965. Hysteresis of 6.9×10-3 was observed. In terms of repeatability, the sensor shows a maximum deviation, ±3oC, which was mainly resulted from the fluctuation of the oven temperature. Despite its high deviation, the sensor has advantages of simple fabrication, low cost, robust, and low power loss, which make it a good candidate for temperature sensors.

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Section: Resultsmentioning

confidence: 99%

Characterization of Temperature Response of Asymmetric Tapered-Plastic Optical Fiber-Mach Zehnder Interferometer

Yulianti

Putra

Fianti

et al. 2020

J. Penelit. Fis. Apl.

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show abstract

“…Therefore, the temperature will influence the POF sensor response. Previous research showed that the power loss per unit temperature in POF is closely related with fiber curvature radius and turns [ 37 ]. Since the sensitive fiber fastened to the wrist brace has a curvature radius larger than 20 mm with 1/4 turns, the power loss per unit temperature in the developed POF is approximately lower than 0.003 dB/°C.…”

Section: Experiments and Analysismentioning

confidence: 99%

Wearable Wrist Movement Monitoring Using Dual Surface-Treated Plastic Optical Fibers

Liu

et al. 2020

Materials

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Regarding high-sensitivity human wrist joint motion monitoring in exercise rehabilitation; we develop a pair of novel wearable and sensitivity-enhanced plastic optical fiber (POF) strain sensors consisting of an etched grating fiber and a side-polished fiber stitched into a polyamide wrist brace. The two flexible and surface-treated fibers are; respectively; featured with an etched periodic gratings with a pitch of 6 mm and a depth of 0.5 mm and a D-shaped side-polished zone of ~300 µm depth and ~30 mm length; which, correspondingly, show the sensitivities of around 0.0176/° and 0.0167/° in a normalized bending angle by far larger than a conventional commercial POF, because it achieves a more sensitive strain-induced evanescent field interaction with the side-machined fibers. Moreover, in terms of the sensor response to bending deformation in the range of −40°~+40°, the former exhibits a better sensitivity in lower angle change, while the latter is superior as the bending angle increases; thereby arranging the two modified POFs separately at the side and back of the human wrist, in order to decouple the wrist joint behaviors induced by typical flexion-extension or abduction-adduction movements. Then, the circular and pentagonal wrist motion trajectory patterns are investigated, to demonstrate the maximum average single-axis motion error of 2.94° via the transformation of spatial angle to plane coordinate for the fabricated couple of POF sensors, which is lower than a recognized standard of 5°, thus suggesting the great potential in wearable exercise rehabilitation of human joints in the field of medical treatment and healing.

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“…Besides, it opposes the electromagnetic interference (EMI) and radio frequency interference (RFI) of wireless communication [9]. The sensor can even be placed in the remote area, competent to measure parameter at an inaccessible location and do not has an electrical charge that fits in a hazardous area [10,11]. Furthermore, the sensor is easy to install for expansion and can deal with the application of a wide variation of temperature [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Temperature monitoring using polymer optical fiber with integration to the internet of things

et al. 2021

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In this paper, a polymer optical fiber (POF) is applied for temperature measuring of water solution using a light source of 650nm. The aim is to analyse the impact of temperature variations on the output of POF sensor device in terms of output power and sensitivity. From the study, the POF sensor shows a linear trend when the temperature is increased from 30°C to 80°C with the sensitivity of the polymer optical fiber for output power to the temperature are 0.00973 dBm/°C or 0.14797 nW/°C, for optical characterization and 0.0011 V/°C for electrical characterization. The integration of the Internet of Things to the system helps the user to monitor the temperature of various spaces anywhere at any time. The sensed values are controlled by Arduino Uno R3 and then sent to Blynk to provide wireless monitoring by the user.

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Temperature dependence of light power propagation in bending plastic optical fiber

Cited by 9 publications

References 14 publications

Characterization of Temperature Response of Asymmetric Tapered-Plastic Optical Fiber-Mach Zehnder Interferometer

Characterization of Temperature Response of Asymmetric Tapered-Plastic Optical Fiber-Mach Zehnder Interferometer

Wearable Wrist Movement Monitoring Using Dual Surface-Treated Plastic Optical Fibers

Temperature monitoring using polymer optical fiber with integration to the internet of things

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