Temperature sensor device based on a chalcogenide glass material and construction method thereof

A technology of chalcogenide glass and sensing devices, which is applied in the field of sensing devices, can solve the problems that high-sensitivity sensing detection cannot be applied, and achieve the effects of wide infrared transmission range, uniform spatial distribution of light energy, and wide application prospects

Active Publication Date: 2018-04-13
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the temperature sensitivity of quartz long-period fiber gratings is generally 0.04-0.1nm / ℃, which cannot be applied to high-sensitivity sensing and detection.

Method used

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  • Temperature sensor device based on a chalcogenide glass material and construction method thereof
  • Temperature sensor device based on a chalcogenide glass material and construction method thereof
  • Temperature sensor device based on a chalcogenide glass material and construction method thereof

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Effect test

Embodiment 1

[0031] The temperature sensing device based on chalcogenide glass material of embodiment 1, such as figure 1 As shown, it includes a broadband light source A, a first spectrum analyzer B and a long-period fiber grating C made of Ge-As-Se chalcogenide glass material. The output end of the broadband light source A passes through the first single-mode fiber jumper D, The first flange E and the first bare fiber adapter F are connected to the incident end of the long-period fiber grating C, and the exit end of the long-period fiber grating C passes through the second bare fiber adapter G, the second flange H and the second The single-mode fiber jumper I is connected to the incident end of the first spectrum analyzer B, and the long-period fiber grating C is made of a single-mode chalcogenide glass material fiber through melting and tapering into a tapered chalcogenide fiber and then passed on the tapered chalcogenide fiber. Femtosecond laser pulses are written into long-period grat...

Embodiment 2

[0044] Embodiment 2: The composition and construction method of the temperature sensing device in Embodiment 1 are basically the same, the difference is that in Embodiment 2, the chalcogenide glass material used is Ge-Sb-Se, and its temperature sensitivity is 2.76541nm / °C.

Embodiment 3

[0045] Embodiment 3: The composition and construction method of the temperature sensing device in Embodiment 1 are basically the same, the difference is that in Embodiment 3, the chalcogenide glass material used is As-Se, and its temperature sensitivity is 1.52049nm / °C .

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Abstract

The invention discloses a temperature sensor device based on a chalcogenide glass material and a construction method thereof. The temperature sensor device includes a broadband light source, a first spectrum analyzer and a long-period fiber grating made of a chalcogenide glass material. The two ends of the long-period fiber grating are respectively connected with the broadband light source and thefirst spectrum analyzer. The long-period fiber grating is obtained in a way that a single-mode chalcogenide glass fiber is subjected to fused tapering to form a tapered chalcogenide fiber and the tapered chalcogenide fiber is written in the long-period fiber grating via femtosecond laser pulses. The temperature sense device based on the chalcogenide glass material has a temperature sensitivity of2.97186 nm/DEG C, which is significantly higher than the temperature sensitivity of 0.04-0.1 nm/DEG C of the traditional quartz long-period fiber grating sensor, is more suitable for high-sensitivitytemperature transmission, and has a wider application prospect in the field of high sensitivity sensing.

Description

technical field [0001] The invention relates to a sensing device, in particular to a temperature sensing device based on a chalcogenide glass material and a construction method thereof. Background technique [0002] Due to the coupling between the forward-propagating core mode and the co-transporting cladding mode, the long-period fiber grating can couple the light of a certain frequency band in the guided wave to the cladding and lose it, and its period ranges from tens of microns to between hundreds of microns. The transmission characteristics of long-period fiber gratings will change due to external stress, ambient temperature and other factors, and the sensing information can be obtained by tuning the resonance wavelength. The advantages of fiber grating sensing are strong anti-electromagnetic interference, small size, can be embedded in materials, and easy to connect with optical fibers. Compared with fiber Bragg gratings, long-period fiber gratings are more sensitive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/32G01K11/3206
CPCG01K11/3206
Inventor 张培晴杨丹丹朱亮王磊磊戴世勋林常规王训四许银生刘自军张巍
Owner NINGBO UNIV
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