Musical instrument pickup based on a laser locked to an optical fiber resonator

被引：29

作者：

Avino, Saverio ^{[1
]}

Barnes, Jack A. ^{[2
]}

Gagliardi, Gianluca ^{[1
]}

Gu, Xijia ^{[3
]}

Gutstein, David ^{[2
]}

Mester, James R. ^{[2
]}

Nicholaou, Costa ^{[2
]}

Loock, Hans-Peter ^{[2
]}

机构：

[1] Ist Nazl Ottica, I-80078 Naples, Italy

[2] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada

[3] Ryerson Univ, Dept Elect & Comp Engn, Toronto, ON M5B 2K3, Canada

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 25期

基金：

加拿大自然科学与工程研究理事会;

关键词：

BRAGG GRATING SENSORS; INTERROGATION; SPECTROSCOPY;

D O I：

10.1364/OE.19.025057

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A low-noise transducer based on a fiber Fabry-Perot (FFP) cavity was used as a pickup for an acoustic guitar. A distributed feedback (DFB) laser was locked to a 25 MHz-wide resonance of the FFP cavity using the Pound-Drever-Hall method. The correction signal was used as the audio output and was preamplified and sampled at up to 96 kHz. The pickup system is largely immune against optical noise sources, exhibits a flat frequency response from the infrasound region to about 25 kHz, and has a distortion-free audio output range of about 50 dB. (C) 2011 Optical Society of America

引用

收藏

页码：25057 / 25065

页数：9

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