High-frequency acoustic detector based on fiber Fabry-Perot interferometer

被引：0
|
作者：
Park, HS [1 ]
Thursby, G [1 ]
Culshaw, B [1 ]
机构：
[1] Univ Strathclyde, Dept Elect & Elect Engn, Optoelect Div, Glasgow G1 1XW, Lanark, Scotland
来源：
SECOND EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS: PROCEEDINGS | 2004年 / 5502卷
关键词：
laser ultrasound; optical fiber sensors; acoustic signal detection; nondestructive testing; Fabry-Perot interferometers;
D O I：
10.1117/12.566634
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We describe a novel optical acoustic detector based on a bias-controlled fiber Fabry-Perot interferometer. Broad bandwidth as 15 MHz similar to a few GHz and higher sensitivity than that of conventional systems were demonstrated. The minimum detectable phase was 4x10(-8) rad/Hz(1/2), which was 3 times larger than the quantum-limited value.
引用
收藏
页码：213 / 216
页数：4
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