Arrays of fiber Bragg gratings selectively inscribed in different cores of 7-core spun optical fiber by IR femtosecond laser pulses

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Arrays of fiber Bragg gratings selectively inscribed in different cores of 7-core spun optical fiber by IR femtosecond laser pulses. / Wolf, Alexey; Dostovalov, Alexandr; Bronnikov, Kirill et al.

In: Optics Express, Vol. 27, No. 10, 13.05.2019, p. 13978-13990.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{7f6f819c7b9d41908bc8c01b6ed30792,

title = "Arrays of fiber Bragg gratings selectively inscribed in different cores of 7-core spun optical fiber by IR femtosecond laser pulses",

abstract = "In this paper, we present a new method of point-by-point femtosecond inscription of fiber Bragg gratings (FBG) arrays of different configurations in a 7-core spun optical fiber. The possibility of FBGs inscription with predefined periods in individual fiber cores allowed us to realize: 1) longitudinal FBG arrays with identical or variable resonant wavelengths in all side cores, 2) longitudinal FBG arrays inscribed only in the central or in the selected side core, and 3) an FBG array in a transverse cross section of a fiber consisting of an FBG inscribed in the central and three side cores. Based on the proposed method, by enabling the inscription through the acrylate protective coating of the fiber, a vector bend sensor has been created. Implementation of this sensor has shown that bending radii less than 4 mm can be measured with a high precision using a single-channel interrogation scheme.",

keywords = "BY-POINT INSCRIPTION, BEND MEASUREMENT",

author = "Alexey Wolf and Alexandr Dostovalov and Kirill Bronnikov and Sergey Babin",

note = "Publisher Copyright: {\textcopyright} 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement",

year = "2019",

month = may,

day = "13",

doi = "10.1364/OE.27.013978",

language = "English",

volume = "27",

pages = "13978--13990",

journal = "Optics Express",

issn = "1094-4087",

publisher = "The Optical Society",

number = "10",

}

RIS

TY - JOUR

T1 - Arrays of fiber Bragg gratings selectively inscribed in different cores of 7-core spun optical fiber by IR femtosecond laser pulses

AU - Wolf, Alexey

AU - Dostovalov, Alexandr

AU - Bronnikov, Kirill

AU - Babin, Sergey

PY - 2019/5/13

Y1 - 2019/5/13

N2 - In this paper, we present a new method of point-by-point femtosecond inscription of fiber Bragg gratings (FBG) arrays of different configurations in a 7-core spun optical fiber. The possibility of FBGs inscription with predefined periods in individual fiber cores allowed us to realize: 1) longitudinal FBG arrays with identical or variable resonant wavelengths in all side cores, 2) longitudinal FBG arrays inscribed only in the central or in the selected side core, and 3) an FBG array in a transverse cross section of a fiber consisting of an FBG inscribed in the central and three side cores. Based on the proposed method, by enabling the inscription through the acrylate protective coating of the fiber, a vector bend sensor has been created. Implementation of this sensor has shown that bending radii less than 4 mm can be measured with a high precision using a single-channel interrogation scheme.

AB - In this paper, we present a new method of point-by-point femtosecond inscription of fiber Bragg gratings (FBG) arrays of different configurations in a 7-core spun optical fiber. The possibility of FBGs inscription with predefined periods in individual fiber cores allowed us to realize: 1) longitudinal FBG arrays with identical or variable resonant wavelengths in all side cores, 2) longitudinal FBG arrays inscribed only in the central or in the selected side core, and 3) an FBG array in a transverse cross section of a fiber consisting of an FBG inscribed in the central and three side cores. Based on the proposed method, by enabling the inscription through the acrylate protective coating of the fiber, a vector bend sensor has been created. Implementation of this sensor has shown that bending radii less than 4 mm can be measured with a high precision using a single-channel interrogation scheme.

KW - BY-POINT INSCRIPTION

KW - BEND MEASUREMENT

UR - http://www.scopus.com/inward/record.url?scp=85065823814&partnerID=8YFLogxK

U2 - 10.1364/OE.27.013978

DO - 10.1364/OE.27.013978

M3 - Article

C2 - 31163854

AN - SCOPUS:85065823814

VL - 27

SP - 13978

EP - 13990

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 10

ER -

ID: 20040986