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Title: Microfluidic device integrated with FBG in Co2+-doped fiber to measure flow rate with nL/s sensitivity
Authors: Liu, Z
Zhang, AP 
Tam, HY 
Keywords: FBG sensor
Flow rate sensor
Issue Date: 2014
Publisher: SPIE-International Society for Optical Engineering
Source: Proceedings of SPIE : the International Society for Optical Engineering, 2014, v. 9157, 91573I How to cite?
Journal: Proceedings of SPIE : the International Society for Optical Engineering 
Abstract: Microfluidic device with integrated flow rate sensor is demonstrated. Two glass capillaries and a short length of high light-absorption, Co 2+-doped fiber were stacked inside another capillary and drawn into a taper, containing two ∼40μm diameter microchannels. An FBG was inscribed in the Co2+-doped fiber. 1480 nm light was used to heat the Co 2+-doped fiber and its temperature was measured using an FBG-interrogator operating around 1550nm. The flow rate of the liquid inside in the microchannel can be determined by the temperature and cooling rate of the microchannel. Sensitivity of 0.304nm/(μL/s) and minimum detectable flow rate ∼16nL/s were demonstrated.
Description: 23rd International Conference on Optical Fibre Sensors, Santander, 2-6 June 2014
ISBN: 9781628411751
ISSN: 0277-786X
EISSN: 1996-756X
DOI: 10.1117/12.2059244
Appears in Collections:Conference Paper

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