Laser-machined fibers as Fabry-Perot pressure sensors

被引:43
作者
Watson, Stuart [1 ]
Gander, Matthew J.
MacPherson, William N.
Barton, James S.
Jones, Julian D. C.
Klotzbuecher, Thomas
Braune, Torsten
Ott, Johannes
Schmitz, Felix
机构
[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland
[2] Inst Mikrotech Mainz GmbH, D-55129 Mainz, Germany
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1364/AO.45.005590
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Cavities have been laser ablated in the ends of single-mode optical fibers and sealed by aluminized polycarbonate diaphragms to produce Fabry-Perot pressure sensors. Both conventional fibers and novel, multicore fibers were used, demonstrating the possibility of producing compact arrays of sensors and multiple sensors on an individual fiber 125 mu m in diameter. This high spatial resolution can be combined with high temporal resolution by simultaneously interrogating the sensors by using separate laser sources at three wavelengths. Shock tube tests showed a sensor response time of 3 mu s to a step increase in pressure. (C) 2006 Optical Society of America.
引用
收藏
页码:5590 / 5596
页数:7
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