Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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 и др.
в: Optics Express, Том 27, № 10, 13.05.2019, стр. 13978-13990.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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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
N1 - Publisher Copyright: © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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