Chinese Optics Letters, Volume. 13, Issue 10, 100601(2015)
FFPI-FBG hybrid sensor to measure the thermal expansion and thermo-optical coefficient of a silica-based fiber at cryogenic temperatures
Fig. 1. Schematic structure of the FFPI-FBG hybrid sensor.
Fig. 2. Digital microscope image of the hybrid sensor.
Fig. 3. Reflective spectrum of the hybrid sensor.
Fig. 4. (a) Configuration and (b) actual packaging of the hybrid sensor.
Fig. 5. Room temperature performance of the FFPI-FBG hybrid sensor.
Fig. 6. Cryogenic experimental setup.
Fig. 7. (a) Bragg wavelength and (b) FFPI cavity length versus the temperature at cryogenic temperatures.
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Litong Li, Dongsheng Zhang, Xiaoyan Wen, Sisi Peng. FFPI-FBG hybrid sensor to measure the thermal expansion and thermo-optical coefficient of a silica-based fiber at cryogenic temperatures[J]. Chinese Optics Letters, 2015, 13(10): 100601
Category: Fiber Optics and Optical Communications
Received: May. 15, 2015
Accepted: Jul. 23, 2015
Published Online: Sep. 13, 2018
The Author Email: Litong Li (13163386978@163.com)