Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/68777
Title: Highly sensitive miniature fluidic flowmeter based on an FBG heated by Co2+-doped fiber
Authors: Liu, ZY 
Htein, L 
Cheng, LK 
Martina, Q 
Jansen, R 
Tam, HY 
Issue Date: 2017
Publisher: Optical Society of America
Source: Optics express, 2017, v. 25, no. 4, p. 4393-4402 How to cite?
Journal: Optics express 
Abstract: In this paper, we present a miniature fluidic flow sensor based on a short fiber Bragg grating inscribed in a single mode fiber and heated by Co2+-doped multimode fibers. The proposed flow sensor was employed to measure the flow rates of oil and water, showing good sensitivity of 0.339 nm/(m/s) and 0.578 nm/(m/s) for water and oil, flowing at v = 0.2 m/s. The sensitivity can be increased with higher laser power launched to the Co2+-doped multimode fibers. A small flow rate of 0.005 m/s and 0.002 m/s can be distinguished for a particular phase of water or oil, respectively, at a certain laser power (i.e. similar to 1.43W). The flow sensor can measure volume speed up to 30 L/min, which is limited by the test rig. The experimental results show that the sensor can discriminate slight variation of flow rates as small as 0.002m/s.
URI: http://hdl.handle.net/10397/68777
EISSN: 1094-4087
DOI: 10.1364/OE.25.004393
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