Temperature sensing based on multimodal interference in polymer optical fibers: Room-temperature sensitivity enhancement by annealing

2017 ◽  
Vol 56 (7) ◽  
pp. 078002 ◽  
Author(s):  
Tomohito Kawa ◽  
Goki Numata ◽  
Heeyoung Lee ◽  
Neisei Hayashi ◽  
Yosuke Mizuno ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Temperature Sensitivity ◽  
Room Temperature ◽  
Sensitivity Enhancement ◽  
Temperature Sensing ◽  
Polymer Optical Fibers

Drastic sensitivity enhancement of temperature sensing based on multimodal interference in polymer optical fibers

2015 ◽  
Vol 8 (7) ◽  
pp. 072502 ◽  
Author(s):  
Goki Numata ◽  
Neisei Hayashi ◽  
Marie Tabaru ◽  
Yosuke Mizuno ◽  
Kentaro Nakamura
Keyword(s):  
Optical Fibers ◽  
Sensitivity Enhancement ◽  
Temperature Sensing ◽  
Polymer Optical Fibers

scholarly journals Multimodal Interference in Perfluorinated Polymer Optical Fibers: Application to Ultrasensitive Strain and Temperature Sensing

2018 ◽  
Vol E101.C (7) ◽  
pp. 602-610 ◽  
Author(s):  
Yosuke MIZUNO ◽  
Goki NUMATA ◽  
Tomohito KAWA ◽  
Heeyoung LEE ◽  
Neisei HAYASHI ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Temperature Sensing ◽  
Polymer Optical Fibers

scholarly journals Single-end-access strain and temperature sensing based on multimodal interference in polymer optical fibers

2017 ◽  
Vol 14 (3) ◽  
pp. 20161239-20161239 ◽  
Author(s):  
Tomohito Kawa ◽  
Goki Numata ◽  
Heeyoung Lee ◽  
Neisei Hayashi ◽  
Yosuke Mizuno ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Temperature Sensing ◽  
Polymer Optical Fibers

scholarly journals Strain and temperature sensing based on multimode interference in partially chlorinated polymer optical fibers

2015 ◽  
Vol 12 (2) ◽  
pp. 20141173-20141173 ◽  
Author(s):  
Goki Numata ◽  
Neisei Hayashi ◽  
Marie Tabaru ◽  
Yosuke Mizuno ◽  
Kentaro Nakamura
Keyword(s):  
Optical Fibers ◽  
Temperature Sensing ◽  
Multimode Interference ◽  
Polymer Optical Fibers

scholarly journals Polymer Fibers Covered by Soft Multilayered Films for Sensing Applications in Composite Materials

Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 4052 ◽  
Author(s):  
Dorian Nikoniuk ◽  
Karolina Bednarska ◽  
Maksymilian Sienkiewicz ◽  
Grzegorz Krzesiński ◽  
Mateusz Olszyna ◽  
...  
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Optical Fibers ◽  
Temperature Sensitivity ◽  
Polymer Coating ◽  
Layer By Layer ◽  
Sensor Applications ◽  
Sensing Applications ◽  
Polymer Optical Fibers ◽  
Soft Polymer

This paper presents the possibility of applying a soft polymer coating by means of a layer-by-layer (LbL) technique to highly birefringent polymer optical fibers designed for laminating in composite materials. In contrast to optical fibers made of pure silica glass, polymer optical fibers are manufactured without a soft polymer coating. In typical sensor applications, the absence of a buffer coating is an advantage. However, highly birefringent polymer optical fibers laminated in a composite material are much more sensitive to temperature changes than polymer optical fibers in a free space as a result of the thermal expansion of the composite material. To prevent this, we have covered highly birefringent polymer optical fibers with a soft polymer coating of different thickness and measured the temperature sensitivity of each solution. The results obtained show that the undesired temperature sensitivity of the laminated optical fiber decreases as the thickness of the coating layer increases.

4H-SiC PIN Diode as High Temperature Multifunction Sensor

2017 ◽  
Vol 897 ◽  
pp. 630-633 ◽  
Author(s):  
Shuo Ben Hou ◽  
Per Erik Hellström ◽  
Carl Mikael Zetterling ◽  
Mikael Östling
Keyword(s):  
High Temperature ◽  
Bias Voltage ◽  
Temperature Sensitivity ◽  
Room Temperature ◽  
Optical Sensing ◽  
Temperature Sensing ◽  
The Other ◽  
Pin Diode ◽  
Forward Current

An in-house fabricated 4H-SiC PIN diode that has both optical sensing and temperature sensing functions from room temperature (RT) to 550 °C is presented. The two sensing functions can be simply converted from one to the other by switching the bias voltage on the diode. The optical responsivity of the diode at 365 nm is 31.8 mA/W at 550 °C. The temperature sensitivity of the diode is 2.7 mV/°C at the forward current of 1 μA.

scholarly journals Ultra-Sensitive Strain and Temperature Sensing Based on Modal Interference in Perfluorinated Polymer Optical Fibers

2014 ◽  
Vol 6 (5) ◽  
pp. 1-7 ◽  
Author(s):  
Goki Numata ◽  
Neisei Hayashi ◽  
Marie Tabaru ◽  
Yosuke Mizuno ◽  
Kentaro Nakamura
Keyword(s):  
Optical Fibers ◽  
Temperature Sensing ◽  
Sensitive Strain ◽  
Modal Interference ◽  
Polymer Optical Fibers
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