OPTICAL FIBER BOCDA SENSOR USING PHASE CODE MODULATION OF PUMP LIGHT AND PROBE LIGHT WHICH HAVE TIME DIFFERENCE

Title:

OPTICAL FIBER BOCDA SENSOR USING PHASE CODE MODULATION OF PUMP LIGHT AND PROBE LIGHT WHICH HAVE TIME DIFFERENCE

Document Type and Number:

WIPO Patent Application WO/2019/221534

Kind Code:

A1

Abstract:

The present invention relates to an optical fiber BOCDA sensor. A purpose of the present invention is to provide an optical fiber BOCDA sensor which uses two phase codes to control a correlation peak position, thereby further simplifying control design and device configuration and improving spatial resolution to enhance a sensing performance and detection accuracy in comparison with the prior art.

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Inventors:

KWON IL-BUM (KR)
SEO DAE-CHEOL (KR)
KIM CHI-YEOP (KR)
CHOI BO-HUN (KR)

Application Number:

PCT/KR2019/005884

Publication Date:

November 21, 2019

Filing Date:

May 16, 2019

Export Citation:

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Assignee:

KOREA RES INST STANDARDS & SCI (KR)

International Classes:

G01K11/32; G01D5/353

Foreign References:

JP2017116423A	2017-06-29
JP2017040576A	2017-02-23
JP5322162B2	2013-10-23
KR101310783B1	2013-09-25
KR101358942B1	2014-02-07

Other References:

AVI ZADOK: "Random-access distributed fiber sensing", LASER PHOTONICS REV, vol. 6, no. 5, 2012, pages 1 - 5
See also references of EP 3795968A4

Attorney, Agent or Firm:

PLUS INTERNATIONAL IP LAW FIRM (KR)

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