Photonics Research, Volume. 10, Issue 4, 1011(2022)
Regenerated polymer optical fiber Bragg gratings with thermal treatment for high temperature measurements
Fig. 1. (a) Schematic illustration of core and cladding compositions and (b) cross-sectional microscopic image of ZEONEX-based POF. (c) Experimental configuration of the thermal annealing setup; evolution of reflected peak power of POFBGs during thermal regeneration inscribed in (d) untreated and (e) thermally treated ZEONEX-based POFs. Reflection spectral profiles of
Fig. 2. Temperature measurements for two heating and cooling cycles each: (a)
Fig. 3. (a) Normalized Bragg wavelength and (b) peak power stability of
Fig. 4. (a) Temperature sensitivity calibration for two cooling and heating cycles from 24°C to 2°C, (b) wavelength shift with increasing temperature, and (c) corresponding reflection spectrum profiles of
Fig. 5. Configuration of the experimental setup used for strain calibrations.
Fig. 6. Strain sensitivity calibrations for two loading and unloading cycles: (a)
Fig. 7. Raman spectra of ZEONEX material in the core (E48R) from (a) 250 to
Fig. 8. Comparison of Raman spectra between UV irradiated and regenerated fiber cross sections in the core from (a) 700 to
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Dinusha Serandi Gunawardena, Xin Cheng, Jingxian Cui, Geraldi Edbert, Linyue Lu, Yuk Ting Ho, Hwa-Yaw Tam. Regenerated polymer optical fiber Bragg gratings with thermal treatment for high temperature measurements[J]. Photonics Research, 2022, 10(4): 1011
Category: Instrumentation and Measurements
Received: Jan. 13, 2022
Accepted: Feb. 21, 2022
Published Online: Apr. 26, 2022
The Author Email: Dinusha Serandi Gunawardena (dinusha.gunawardena@polyu.edu.hk), Xin Cheng (eechengx@polyu.edu.hk)