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Coupling fiber and echo wall micro cavity measurement filtering device

A filter device and whispering wall technology, applied in the field of sensors, can solve problems such as difficulty in implementation, poor quality, and low stability, and achieve the effect of improving physical strength, improving stability, and good stability

Inactive Publication Date: 2017-09-01
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a measurement filter device for coupling optical fiber and whispering gallery microcavity to solve the problems of poor quality, low stability and difficult implementation existing in the current measurement of coupling optical fiber and whispering gallery microcavity

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  • Coupling fiber and echo wall micro cavity measurement filtering device
  • Coupling fiber and echo wall micro cavity measurement filtering device
  • Coupling fiber and echo wall micro cavity measurement filtering device

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0026] In the description of the present invention, unless otherwise specified and limited, it should be noted that the term "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be Directly connected or indirectly connected through an intermediary, those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0027] see figure 1 , is a ...

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Abstract

The invention provides a coupling fiber and echo wall micro cavity measurement filtering device. The device comprises a fiber and an echo wall micro cavity, wherein the echo wall micro cavity is embedded in the fiber and is crossed with the fiber, a gap is formed between a bottom end of the echo wall micro cavity at the crossing portion and a residual fiber of the fiber, the bottom end of the echo wall micro cavity abuts two side surfaces of the residual fiber to make input light of the fiber partially transmit around the echo wall micro cavity at the gap, corresponding parameters inputted to the echo wall micro cavity are measured through monitoring the input light of the fiber, and characteristics of materials filled in the echo wall micro cavity are measured according to the acquired corresponding parameters; filtering control on the input light of the fiber is carried out through adjusting the corresponding parameters inputted to the echo wall micro cavity and / or the materials filled in the echo wall micro cavity. The device is advantaged in that not only can parameter sensing measurement be realized, but also filtering control can be further realized, and the device further has property of better stability and higher quality and is easier to realize.

Description

technical field [0001] The invention belongs to the technical field of sensors, and in particular relates to a measurement filter device for coupling an optical fiber and a whispering gallery microcavity. Background technique [0002] In the field of sensors, when the cross-sectional diameter of an ordinary optical fiber is tapered into an optical fiber smaller than 2 μm, the evanescent field of the tapered fiber and the microcavity coupling of the whispering gallery can excite the microcavity mode of the whispering gallery. The method of microcavity is used for parameter measurement. However, in the coupling process, carbon dioxide laser welding or optical glue bonding is usually used to fix the tapered optical fiber and the microcavity of the whispering gallery as a whole. Among them, when using carbon dioxide laser welding, it is necessary to optimize the laser energy to protect the tapered fiber. When using optical glue, it is necessary to protect the tapered fiber from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/26
CPCG01D5/268
Inventor 朱涛
Owner CHONGQING UNIV