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Common Arm Interferometer Optical Probe

A technology of optical probes and interferometers, applied in medical science, dentistry, sensors, etc., can solve the problem of high quality interference signals

Active Publication Date: 2015-07-29
上海微太宝驰光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects existing in the prior art, the object of the present invention is to overcome the problem that there is no endoscopic optical probe with a common reference arm and a signal arm with stable structure performance and high interference signal quality, and to provide a co-arm interferometer optical probe , is a miniaturized, solid structure, stable performance common reference arm and signal arm optical probe

Method used

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  • Common Arm Interferometer Optical Probe
  • Common Arm Interferometer Optical Probe
  • Common Arm Interferometer Optical Probe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] see figure 1 , the co-arm type interferometer optical probe includes a single-mode fiber 101, a first cylindrical beam expander 102, a cylindrical beam collimator 103 and a cylindrical beam splitter 104, the single-mode fiber 101, the first cylindrical The cylindrical beam expander 102, the cylindrical beam collimator 103 and the cylindrical beam splitter 104 are sequentially connected end-to-end at the end faces to form a co-arm interferometer optical probe.

[0020] see figure 1 and figure 2 , the cylindrical beam splitter 104 is made of a hollow cylindrical glass tube 201 and a first cylindrical self-focusing lens 202, and the first cylindrical self-focusing lens 202 is connected to the hollow position of the cylindrical glass tube 201; the hollow cylindrical glass One end of the tube 201 connected to the cylindrical beam collimator 103 is coated with an anti-reflection film 203 , and the other end of the hollow cylindrical glass tube 201 is coated with a reflecti...

Embodiment 2

[0023] see figure 1 , figure 2 and image 3 , the co-arm type interferometer optical probe, the cylindrical beam splitter 104 is composed of a hollow cylindrical glass tube 201 and a second cylindrical self-focusing lens 301, and the second cylindrical self-focusing lens 301 is connected to the cylindrical glass tube 201 The output end surface of the hollow cylindrical glass tube 201 is coated with an anti-reflection coating 203 at one end connected with the cylindrical beam collimator 103, and the hollow cylindrical glass tube 201 is connected with the second cylindrical self-focusing lens 301 One end is coated with reflective film 204 .

[0024] The axial length of the hollow cylindrical glass tube 201 in the present embodiment is l 1 , the refractive index n 1 , the axis length of the second cylindrical self-focusing lens 301 is l 3 , the central refractive index is n 2 , the distance from the output end surface of the second cylindrical self-focusing lens 301 to...

Embodiment 3

[0026] see figure 1 , image 3 and Figure 4 , the co-arm type interferometer optical probe, the cylindrical beam splitter 104 is made of a hollow cylindrical glass tube 201, and the hollow cylindrical glass tube 201 connects the second cylindrical beam expander 401 and the third cylindrical beam expander 401 at the end face in turn. Cylindrical self-focusing lens 402, one end of the hollow cylindrical glass tube 201 connected to the cylindrical beam collimator 103 is coated with an anti-reflection coating 203, the hollow cylindrical glass tube 201 is connected to the second cylinder One end connected to the beam expander 401 is coated with a reflective film 204 .

[0027] The axial length of the hollow cylindrical glass tube 201 in the present embodiment is l 1 , the refractive index n 1 , the axial length of the second cylindrical beam expander 401 is l 5 , the refractive index n 3 , the axis length of the third cylindrical self-focusing lens 402 is l 6 , the cen...

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Abstract

The invention discloses an arm-sharing type interferometer optical probe, which comprises a monomode optical fiber, a cylindrical beam expander, a cylindrical light beam collimator and a cylindrical beam splitter, wherein the monomode optical fiber, the cylindrical beam expander, the cylindrical light beam collimator and the cylindrical beam splitter are sequentially connected into a whole at the end surface part, and a reference arm and signal arm sharing type interferometer optical probe is formed. The arm-sharing type interferometer optical probe has the performance of size miniaturization, structure firmness and performance stabilization and can be used for the endoscope imaging technology of the optical interference detection.

Description

technical field [0001] The invention relates to an endoscopic optical probe in an optical interferometer, in particular to a co-arm interferometer optical probe, which belongs to the field of optical imaging detection. Background technique [0002] Optical interference imaging detection technology has the advantages of no damage, large dynamic range, and high spatial resolution, and has great development potential in the field of clinical medicine. For example, optical coherence tomography (OCT) has important application prospects in ophthalmology, gastrointestinal examination, early diagnosis of tumors, cancers, dentistry, and embryonic developmental biology. However, due to the limited penetration depth of light to biological tissue, OCT technology is mostly used in image detection below the bottom 1-3mm of the surface of biological tissue. In order to overcome the limitation of light penetration depth, the endoscopic optical probe was invented and developed. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/00A61B1/05A61B3/14A61C19/04
Inventor 王驰毕书博夏学勤于瀛洁
Owner 上海微太宝驰光电科技有限公司