TY - GEN

T1 - Femtosecond pulse inscription of 3D arrays of bragg gratings in selected cores of a multicore optical fiber

AU - Wolfm, Alexey

AU - Bronnikov, Kirill

AU - Dostovalov, Alexandr

AU - Babin, Sergey

N1 - Publisher Copyright: © 2019 IEEE. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2019/6/1

Y1 - 2019/6/1

N2 - High-power femtosecond lasers is a recognized tool for high-precision micromachining of different materials, including transparent ones - amorphous glasses, crystals and polymers. A wide range of devices that can be created by this technology: elements of integrated photonics and fiber optics, microfluidic and lab-on-a-chip structures. The mechanism of absorption of femtosecond pulses in a volume of transparent material, which is of a non-linear nature, makes it possible to precisely localize the region of modification in volume and achieve a resolution down to 1 μm3 and below. This feature is widely used for direct inscription of point-by-point fiber Bragg gratings (FBGs) in single-mode optical fibers [1]. As compared to interferometric techniques of inscription, femtosecond point-by-point one has a higher degree of flexibility, allowing FBG parameters tuning in a wide range, including length, period, and overlap integral between fiber mode field and FBG cross-section. Moreover, exact positioning of an FBG in transverse section of a fiber allows one to selectively modify individual cores of a multicore fiber, and spectrally select the needed transverse modes of graded-index multimode fiber [2].

AB - High-power femtosecond lasers is a recognized tool for high-precision micromachining of different materials, including transparent ones - amorphous glasses, crystals and polymers. A wide range of devices that can be created by this technology: elements of integrated photonics and fiber optics, microfluidic and lab-on-a-chip structures. The mechanism of absorption of femtosecond pulses in a volume of transparent material, which is of a non-linear nature, makes it possible to precisely localize the region of modification in volume and achieve a resolution down to 1 μm3 and below. This feature is widely used for direct inscription of point-by-point fiber Bragg gratings (FBGs) in single-mode optical fibers [1]. As compared to interferometric techniques of inscription, femtosecond point-by-point one has a higher degree of flexibility, allowing FBG parameters tuning in a wide range, including length, period, and overlap integral between fiber mode field and FBG cross-section. Moreover, exact positioning of an FBG in transverse section of a fiber allows one to selectively modify individual cores of a multicore fiber, and spectrally select the needed transverse modes of graded-index multimode fiber [2].

UR - http://www.scopus.com/inward/record.url?scp=85074627886&partnerID=8YFLogxK

U2 - 10.1109/CLEOE-EQEC.2019.8873242

DO - 10.1109/CLEOE-EQEC.2019.8873242

M3 - Conference contribution

AN - SCOPUS:85074627886

T3 - 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019

BT - 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019

Y2 - 23 June 2019 through 27 June 2019

ER -