Fluorescent material detecting system based on double-clad fiber

A double-clad optical fiber and detection system technology, applied in chemical engineering and biomedical fields, can solve the problems of high bending loss of hollow waveguide, high cost of detector production, complex structure, etc., and achieve miniaturization, light weight and small volume Effect

Pending Publication Date: 2019-02-19
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, hollow waveguides have the disadvantages of high bending loss, large diameter
Detectors using hollow-core photonic crystal fibers are expensive to manufacture and complex in structure

Method used

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  • Fluorescent material detecting system based on double-clad fiber
  • Fluorescent material detecting system based on double-clad fiber

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Embodiment Construction

[0021] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings, but the present embodiments do not only limit the present invention, any similar structures and similar changes of the present invention should be included in the protection scope of the present invention.

[0022] The invention is applicable to the measurement of the liquid to be tested in harsh environment.

[0023] figure 1 A fluorescent substance detection system based on a double-clad fiber is shown, and its structural features include: an ultraviolet laser (1), a single-mode fiber (2), a 2×2 double-clad fiber coupler (3), and a cone double-clad optical fiber (4), Teflon tube (5), processed hole (6), multimode optical fiber (7), spectrum analyzer (8); the light emitted by the ultraviolet laser (1) passes through the Single-mode optical fiber (2), single-mode signal input end of 2×2 double-clad fiber coupler (3) and core of double-clad optic...

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Abstract

The invention discloses a fluorescent material detecting system based on double-clad fiber. The system comprises an ultraviolet laser, single mode fiber, a 2*2 double-clad fiber coupler, the double-clad fiber with a tapered end, a Teflon pipe, a hole formed by machining, multimode fiber and a spectrum analyzer. The system adopts an ultraviolet excitation light source, fiber core transmission of the double-clad fiber stimulates a fluorescent molecular solution in the Teflon pipe, and fluorescent molecules are stimulated to transmit a fluorescent signal; the fluorescent signal is collected by aninner clad layer of the double-clad fiber, the spectrum analyzer detects the strength and wave length of fluorescence, and therefore the concentration and type of a fluorescent material are measured.The system has the advantages of high sensitivity, small size and light weight, the limitation in the heat-resistance temperature aspect is smaller, manufacturing is easy, and the cost is low. Substances contained in a sample can be more conveniently detected more accurately and more efficiently.

Description

technical field [0001] The invention relates to multiple fields such as biomedicine and chemical engineering, and has broad application prospects in living body detection, precision medicine and drug screening. Background technique [0002] The incidence of cancer in my country is close to the world level, but the mortality rate is higher than the world level. Few effective screening techniques, low level of early diagnosis techniques and other factors lead to late detection of tumors; poor tumor treatment effect, high recurrence and metastasis rate, high side effects of tumor treatment, poor precision and other reasons make tumor treatment difficult; detection of early stage cancer And diagnostic techniques are not very effective, in most cases still need to use biopsy for diagnosis, this method is highly invasive, more invasive to the patient, slower to detect, and may cause the spread of cancer cells, and requires testing personnel Possess a certain knowledge of patholog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00G02B6/38G01N21/64
CPCA61B5/0071A61B5/0075G01N21/645G01N2021/6484G02B6/38
Inventor 陈慧芳徐晨孙琦陈宇帆张浩森娄佳
Owner CHINA JILIANG UNIV
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