title: High-accuracy fiber optical microphone in a DBR fiber laser based on a nanothick silver diaphragm by self-mixing technique.
abstract: A high-accuracy fiber optical microphone (FOM) is first applied by self-mixing technique in a DBR fiber laser based on a nanothick silver diaphragm. The nanothick silver diaphragm fabricated by the convenient and low cost electroless plating method is functioned as sensing diaphragm due to critically susceptible to the air vibration. Simultaneously, micro-vibration theory model of self-mixing interference fiber optical microphone is deduced based on quasi-analytical method. The dynamic property to frequencies and amplitudes are experimentally carried out to characterize the fabricated FOM and also the reproduced sound of news and music can clearly meet the ear of the people which shows the technique proposed in this paper guarantee steady, high signal-noise ratio operation and outstanding accuracy in the DBR fiber laser which is potential to medical and security applications such as real-time voice reproduction for throat and voiceprint verification.
authors: Zhengting
authors: Z
authors: Du
authors: Liang
authors: L
authors: Lu
authors: Wenhua
authors: W
authors: Zhang
authors: Bo
authors: B
authors: Yang
authors: Shuang
authors: S
authors: Wu
authors: Yunhe
authors: Y
authors: Zhao
authors: Feng
authors: F
authors: Xu
authors: Zhiping
authors: Z
authors: Wang
authors: Huaqiao
authors: H
authors: Gui
authors: Jianguo
authors: J
authors: Liu
authors: Benli
authors: B
authors: Yu
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007834:Lasers; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000295:instrumentation*; D012834:Silver / Q000737:chemistry*; D014159:Transducers
chemical_list: D012834:Silver