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Open AccessCommunication
Polymers 2018, 10(11), 1192; https://doi.org/10.3390/polym10111192

Femtosecond Laser Microprinting of a Polymer Optical Fiber Interferometer for High-Sensitivity Temperature Measurement

1
Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
2
Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), Wuhan 430074, China
3
Huazhong University of Technology Shenzhen Research Institute, No. 9 Yue Hing Third Road, Nanshan District, Shenzhen 518057, China
*
Author to whom correspondence should be addressed.
Received: 30 June 2018 / Revised: 19 October 2018 / Accepted: 22 October 2018 / Published: 26 October 2018
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Abstract

Femtosecond laser induced multi-photon polymerization technique can be applied to fabricate an ultracompact polymer optical fiber interferometer which was embedded in a section of hollow core fiber. The production of the photoresin, used in this work, is described. Such a device has been used for temperature measurement, due to its excellent thermal properties. Transmission spectrum, structural morphology, and temperature response of the polymer optical fiber interferometer are experimentally investigated. A high wavelength sensitivity of 6.5 nm/°C is achieved over a temperature range from 25 °C to 30 °C. The proposed polymer optical fiber interferometer exhibits high temperature sensitivity, excellent mechanical strength, and ultra-high integration. More complex fiber-integrated polymer function micro/nano structures produced by this technique may result in more applications in optical fiber communication and optical fiber sensors. View Full-Text
Keywords: femtosecond laser microprinting; fiber interferometer; temperature measurement femtosecond laser microprinting; fiber interferometer; temperature measurement
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Li, C.; Liao, C.; Wang, J.; Gan, Z.; Wang, Y. Femtosecond Laser Microprinting of a Polymer Optical Fiber Interferometer for High-Sensitivity Temperature Measurement. Polymers 2018, 10, 1192.

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