Fiber Fabry-Perot sonic probe device and manufacturing method thereof

A technology of percosonic wave and optical fiber method, which is applied in the field of optical fiber method percosonic wave probe device and metal-doped graphene film, which can solve the problems of low detection sensitivity of external pressure or acoustic wave signal, low contrast of interference fringes, etc., and achieve improved reception rate, Create simple, contrast-enhancing effects

Active Publication Date: 2017-01-04
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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Problems solved by technology

For graphene pressure sensors, Jin Wei et al. made intrinsic graphene film fiber-tip pressure sensor with graphenediaphragm in 2012 (see: Jun Ma, WeiJin, Hoi Lut Ho, et al. High-sensitivity fiber-tip pressure sensor with graphenediaphragm [J]. Optics letters, 2012,13(37):2493-2495.), and in 2014, an extrinsic graphene film optical fiber F-Per interference sensor was produced (see: Jun Ma, Wei Jin, HaifengXuan, et al .Fiber-opticferrule-top nanomechanical resonator with multilayer graphene film[J].Opticsletters,2014,16(39):4769-4772.), they all use the single-mode fiber end face and graphene film as the reflective surface, and

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  • Fiber Fabry-Perot sonic probe device and manufacturing method thereof
  • Fiber Fabry-Perot sonic probe device and manufacturing method thereof
  • Fiber Fabry-Perot sonic probe device and manufacturing method thereof

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0027] figure 1 It is the device diagram of our acoustic wave probe. The single-mode fiber is welded with a section of graded multimode fiber. The end face of the graded multimode fiber and the graphene film form two light reflection surfaces, forming a F-Per interference cavity. The quartz glass sleeve plays the role of fixing and alignment. The role of straight fiber. Among them, the core diameter of the single-mode fiber is 9 microns, and the cladding diameter is 125 microns. The core diameter of the graded multimode fiber is 62.5 microns, the cladding diameter is 125 microns, the self-focusing period of the graded multimode fiber is 500 microns, and the length of the graded multimode fiber is 1250 microns. figure 2 It is a diagram of the manufacturing method of the optical fiber end face of the device. First, the end faces of a section of sing...

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Abstract

The invention relates to the fields of fiber technology, optical engineering and material engineering, and particularly to a fiber Fabry-Perot sonic probe device and a manufacturing method thereof. According to the fiber Fabry-Perot sonic probe device, parallel transmission and reflection of outlet light beams are realized through a graded-index multimode fiber, and receiving rate of light which is reflected by a graphene film is improved. The metal-doped graphene film improves light reflection rate. The fiber Fabry-Perot sonic probe device and the manufacturing method settle a problem of relatively low probe sensitivity caused by film thickness increase for improving reflectivity of the graphene film, and realizing high-sensitivity detection for an acoustic signal. The fiber Fabry-Perot sonic probe device has advantages of simple manufacture, small size, high sensitivity, high electromagnetic interference resistance, etc. The fiber Fabry-Perot sonic probe device can be widely applied in the field of safety defense monitoring, underwater monitoring, medical science, biomedical engineering, etc.

Description

technical field [0001] The invention relates to the technical fields of optical fiber technology, optical engineering, and material engineering, and in particular to an optical fiber FAP acoustic wave probe device and a manufacturing method thereof, which are based on a metal-doped graphene film. Background technique [0002] As a very important optical structure, the optical fiber Fab cavity is widely used in precision instruments, industrial production, communication, sensing and other fields due to its small size, low cost, easy integration, and many advantages of long-distance signal transmission. [0003] The traditional optical fiber FAP acoustic wave probe is generally composed of a capillary glass tube, a single-mode optical fiber and a vibrating diaphragm. One end of the capillary glass tube is coated with a vibrating diaphragm, and the other end is inserted into an optical fiber. A reflective surface and air as the cavity medium. For fiber optic acoustic probes wi...

Claims

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Application Information

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IPC IPC(8): G01H9/00
CPCG01H9/004
Inventor 吴宇庾财斌刘小雷彭飞饶云江
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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