Optical fiber vector flow sensor based on a silicon Fabry-Perot interferometer array

被引：42

作者：

Liu, Guigen ^{[1
]}

Sheng, Qiwen ^{[1
]}

Hou, Weilin ^{[2
]}

Han, Ming ^{[1
]}

机构：

[1] Univ Nebraska, Dept Elect & Comp Engn, Lincoln, NE 68588 USA

[2] Naval Res Lab, Code 7333, Stennis Space Ctr, MS 39529 USA

来源：

OPTICS LETTERS | 2016年 / 41卷 / 20期

关键词：

FLOWMETER; ANEMOMETER;

D O I：

10.1364/OL.41.004629

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a miniature fiber-optic water vector flow sensor based on an array of silicon Fabry - Perot interferometers (FPIs). The flow sensor is composed of four silicon FPIs, one in the center with the other three equally distributed around it. The center FPI is heated by a cw laser at 980 nm, which is guided through the lead-in single mode fiber. The temperature structure established within the sensor head due to laser heating is a function of the flow vector (speed and direction), which can be deduced from the wavelength shifts of the four FPIs. Theoretical analysis has been conducted to illustrate the operating principle and experimental demonstration has been provided. (C) 2016 Optical Society of America

引用

页码：4629 / 4632

页数：4

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