Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A sagnac dual-parameter fiber optic sensor based on high birefringence micro-nano fiber

A fiber optic sensor, high birefringence technology, applied in the direction of converting sensor output, using optical devices to transmit sensing components, instruments, etc., can solve the problems of low integration, uncompact structure, low temperature sensitivity, etc., and achieve strong anti-interference ability. , the effect of simple structure and high refractive index sensitivity

Active Publication Date: 2020-05-19
HUAZHONG UNIV OF SCI & TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of the prior art, the object of the present invention is to provide a Sagnac dual-parameter optical fiber sensor based on high-birefringence micro-nano optical fiber, which aims to solve the problems of low temperature sensitivity and uncompact structure of the existing dual-parameter measurement sensor, which lead to a high degree of integration. lower question

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A sagnac dual-parameter fiber optic sensor based on high birefringence micro-nano fiber
  • A sagnac dual-parameter fiber optic sensor based on high birefringence micro-nano fiber
  • A sagnac dual-parameter fiber optic sensor based on high birefringence micro-nano fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0033] The present invention shows a Sagnac dual-parameter optical fiber sensor based on high birefringence micro-nano optical fiber, such as figure 1 As shown, it includes a broadband light source 1 and a Saganc sensor unit 2 with a built-in high birefringence micro-nano fiber;

[0034] The input end of the Saganc sensing unit 2 is connected to the broadband light source 1, and the output end is connected to the spectrometer 3; the broadband light source 1, the Saganc sensing unit 2 and the spectrometer 3 are all connected to each other by means of optical fiber fusion;

[0035] The Saganc sens...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a sagnac dual-parameter fiber sensor based on a high birefringence micro / nano fiber. The sensor comprises a broadband light source and a Saganc sensing unit with a built-in high birefringence micro / nano fiber. An input end of the Saganc sensing unit receives the broadband light source and outputs a spectral interference signal, since the mode interference and Sagnac interference of a beam in the Sagnac sensing unit have different sensitivities to a refractive index and temperature, the wavelength demodulation of the interference signal of an output spectrum is performed, and the sensing of refractive index and temperature parameters can be achieved. The fiber sensor provided by the invention has the characteristics of all fiber, compact structure, low cost, simple manufacture and low loss, and the sensing of the refractive index and temperature parameters are achieved.

Description

Technical field [0001] The invention belongs to the field of optical fiber sensors, and more specifically, relates to a Sagnac dual-parameter optical fiber sensor based on a high birefringence micro-nano optical fiber. Background technique [0002] The optical fiber sensor uses light waves as the carrier and optical fiber as the medium to realize the transmission and perception of the measured signal. Compared with the traditional sensor, the optical fiber sensor exhibits the advantages of anti-electromagnetic interference, light weight, high sensitivity, and simple structure; With the increasing demand in applications such as biology and medicine, researchers have begun to devote themselves to the research of multi-parameter optical fiber sensing technology. Among them, the realization of temperature and refractive index dual-parameter sensing needs to solve the cross-sensitivity problem of the two has also received extensive attention. [0003] Current fiber optic sensors used fo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/353
CPCG01D5/35322
Inventor 夏历阮田甜
Owner HUAZHONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com