Composite maximum-dip-angle fiber bragg grating biochemical sensor and production method thereof

A technology of biochemical sensors and tilted fiber gratings, which is applied to instruments, scientific instruments, and material analysis through optical means, and achieves the effects of simple structure, high safety, and strong environmental adaptability
CN104596941AInactive Publication Date: 2015-05-06CHONGQING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHONGQING UNIV OF TECH
Publication Date
2015-05-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a composite maximum-dip-angle fiber bragg grating biochemical sensor and a production method thereof. The composite maximum-dip-angle fiber bragg grating biochemical sensor comprises an optical fiber core and an optical fiber cladding, and is characterized in that a first oblique fiber bragg grating is arranged on the front section of the optical fiber core, and an angle formed between an oblique grating stripe of the first oblique bragg grating and a longitudinal axis of an optical fiber is 45 degrees; a second oblique fiber bragg grating is arranged on the front half section of the middle section of the optical fiber core, and an angle formed between an oblique grating stripe of the second oblique fiber bragg grating and the longitudinal axis of the optical fiber is 79 to 84 degrees; a fiber bragg grating is arranged on the rear half section of the middle section of the optical fiber core; the outer surfaces of the front section and the rear section of the optical fiber cladding are respectively coated with an optical fiber protective coating; the outer surface of the middle section of the optical fiber cladding is provided with a silane layer in an adsorbing manner; the outer surface of the silane layer is provided with an aptamer layer, and the aptamer layer has a selective absorption or sensitive characteristic for a target bio-molecular or a to-be-tested chemical component. The composite maximum-dip-angle fiber bragg grating biochemical sensor can be widely applied to the fields such as biology, chemical industry, medicine and life science.
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Description

technical field

[0001] The invention relates to an optical fiber sensor, in particular to a composite type extremely inclined optical fiber grating biochemical sensor and a manufacturing method thereof. Background technique

[0002] With the rapid development of many biomedical and life science applications, optics and its technology have entered an important interdisciplinary field - bio-optics. A focal point in this huge intersecting field——optical sensor is undergoing a new transformation, that is, research and development of optical fiber biochemical information sensor with new structure. Due to the rapid development of this intersecting field, optical fiber biochemical information sensors with extremely high biological sensitivity and selectivity are feasible, and may replace traditional solution assay methods for the exploration and discovery of genes, nutrition, and drugs, as well as for Food industry, national security and environmental monitoring.

[0003] In the ...

Claims

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