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Optical fiber cladding SPR sensor, and use method and manufacture method thereof

An optical fiber cladding and manufacturing method technology, applied in the field of optical fiber cladding SPR sensors, can solve the problems of difficult acquisition of evanescent waves, high cost, difficult processing and manufacturing, etc.

Pending Publication Date: 2019-01-18
CHONGQING THREE GORGES UNIV
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Problems solved by technology

[0012] In view of this, the object of the present invention is to provide an optical fiber cladding SPR sensor, its use method and manufacturing method, which can solve the problems of difficult processing and manufacturing of traditional optical fiber SPR sensors, difficult acquisition of evanescent waves, and high cost

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  • Optical fiber cladding SPR sensor, and use method and manufacture method thereof
  • Optical fiber cladding SPR sensor, and use method and manufacture method thereof
  • Optical fiber cladding SPR sensor, and use method and manufacture method thereof

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[0052] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0053] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention belongs to the technical field of optical fiber sensing, and mainly relates to an optical fiber cladding SPR sensor, and a use method and a manufacture method thereof. The invention aimsat providing an optical fiber cladding SPR sensor, and solves a problem that the conventional optical fiber SPR sensor is difficult to process and manufacture, evanescent waves are hard to obtain andcost is high. According to the invention, a normal optical fiber is subjected to core shift welding on an optical fiber welding machine, light in a fiber core is leaked in the cladding, when the light arrives at an interface of the cladding and the air, the evanescent waves can be leaked from the cladding, a nanoscale gold film is formed at the interface of the cladding and the air through plating, thus, an SPR effect happens at the outside of the cladding, and complex processing technologies are avoided; compared with the conventional optical fiber SPR sensor, the optical fiber cladding SPRsensor provided by the invention has the advantages of being small in volume, novel in structure and less difficult to manufacture, and so on, and is widely researched and applied in the fields of bio-pharmaceuticals, food safety inspection and chemical detection.

Description

technical field [0001] The invention belongs to the field of optical fiber sensing, and relates to an optical fiber cladding SPR sensor, a use method and a manufacturing method thereof. Background technique [0002] Surface plasmon resonance (SPR) sensor is an emerging biochemical detection technology, which has the advantages of high sensitivity, no labeling, real-time online detection, etc., and is widely used in food safety, environmental detection, biomedicine and other fields. [0003] Optical fiber SPR sensor is a new type of optical fiber sensor based on the principle of SPR. It has many advantages such as small size, high sensitivity, anti-electromagnetic radiation and interference, and can realize long-distance remote sensing measurement. Its detection principle can be described as: when the light beam When incident from an optically dense medium to an optically sparse medium, it is divided into a beam of transmitted light and a beam of reflected light. If the incid...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/552
CPCG01N21/01G01N21/554
Inventor 魏勇胡江西吴萍苏于东刘春兰聂祥飞
Owner CHONGQING THREE GORGES UNIV
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