Method for producing optical fiber probe

An optical fiber probe and optical fiber technology, which is applied in the directions of light guides, optics, optical components, etc., can solve the problems of high price and difficulty in ensuring the consistency and repeatability of optical fiber probes, and achieve the effect of low cost, convenient operation and easy mass production.

Inactive Publication Date: 2007-05-23
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods require expensive special equipment such as mold machines, pulling devices, and stepping motors, and the consistency and repeatability of fiber optic probes are difficult to guarantee

Method used

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  • Method for producing optical fiber probe
  • Method for producing optical fiber probe

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1, the making of combined tapered optical fiber probe

[0034] As shown in Figure 1, first cut the fiber with a core diameter of 600 μm and a cladding thickness of 10 μm (Nanjing Chunhui Technology Industrial Co., Ltd.) into 11 cm long fiber segments with a special fiber cutter, and then grind one end of the fiber with fiber grinding equipment Flat and polished with a polisher. From the unpolished end of the fiber segment, remove the plastic sheath 1 on the surface of the fiber by 6.3 cm with special pliers, and finally remove the coating 3 of this part carefully with a blade to expose the core and the cladding of the cladding 2.

[0035] Insert the part of the above-mentioned treated optical fiber section with the removed plastic sheath 1 and coating 3 facing down into the solution filled with hydrofluoric acid (the mass percent concentration of HF is 30%), the immersion depth is 7.3cm, and the corrosion time 180min. The tapered optical fiber probe shown i...

Embodiment 2

[0037]Embodiment 2, the making of combined tapered optical fiber probe

[0038] As shown in Figure 1, first cut the fiber with a core diameter of 600 μm and a cladding thickness of 10 μm (Nanjing Chunhui Technology Industrial Co., Ltd.) into 11 cm long fiber segments with a special fiber cutter, and then grind one end of the fiber with fiber grinding equipment Flat and polished with a polisher. From the unpolished end of the fiber segment, remove the plastic sheath 1 on the surface of the fiber by 6.3 cm with special pliers, and finally remove the coating 3 of this part carefully with a blade to expose the core and the cladding of the cladding 2.

[0039] Insert the part of the above-mentioned processed optical fiber section with the plastic sheath 1 and coating 3 removed downwards into a solution containing hydrofluoric acid (the mass percentage concentration of HF is 20%), and the immersion depth is 7.3 cm, and the corrosion time is 7.3 cm. It is 240min. A tapered optical ...

Embodiment 3

[0041] Embodiment 3, the making of combined tapered optical fiber probe

[0042] As shown in Figure 1, first cut the fiber with a core diameter of 600 μm and a cladding thickness of 10 μm (Nanjing Chunhui Technology Industrial Co., Ltd.) into 11 cm long fiber segments with a special fiber cutter, and then grind one end of the fiber with fiber grinding equipment Flat and polished with a polisher. From the unpolished end of the fiber segment, remove the plastic sheath 1 on the surface of the fiber by 6.3 cm with special pliers, and finally remove the coating 3 of this part carefully with a blade to expose the core and the cladding of the cladding 2.

[0043] Insert the part of the above-mentioned processed optical fiber section with the plastic sheath 1 and the coating 3 removed downwards into the solution containing hydrofluoric acid (the mass percent concentration of HF is 10%), and the immersion depth is 7.3cm, and the corrosion time It is 360min. A tapered optical fiber pr...

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Abstract

The invention disclosed a way to make optical fiber transducer which includes the following steps: 1) treating the quartz glass optical fiber which contains fiber core, wrapper and covering layer to make the wrapper of one end outerop; 2) dipping the outeropped end and its connected section which contains covering layer into the 10-30wt% fluohydric acid and let them react with each other. After the reaction, the rested covering layer of the quartz glass optical fiber outerops to get the cone fiber transducer. The invention has many advantages: easy to operate, low cost, easy to produce in quantity; the transducer has very good repeatability.

Description

technical field [0001] The invention relates to a method for making an optical fiber probe. Background technique [0002] Optical fiber is an abbreviation for optical fiber. It is a soft filament drawn from quartz glass or special plastic. Its typical structure is core, cladding and coating from inside to outside. The refractive index of the cladding is slightly smaller than that of the core. According to the principle of total reflection in geometric optics, the light is bundled and transmitted in the core. On the outside of the cladding is a coating layer of 5-40 μm, whose function is to enhance the mechanical strength of the optical fiber and increase the flexibility at the same time. There is often a 100μm thick buffer layer or plastic layer on the outermost surface. [0003] Optical fiber probe is the core component of optical fiber biosensor. Due to its high sensitivity and strong biological specificity; simple operation and fast measurement speed; it can monitor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/66C03C25/24G02B6/00
Inventor 施汉昌龙峰何苗
Owner TSINGHUA UNIV
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