TY - GEN

T1 - Modeling and Fabrication of an Antireflection Microstructure on an AgClBr Fiber by Single-pulse Femtosecond Laser Ablation

AU - Tarabrin, Mikhail

AU - Bushunov, Andrey

AU - Teslenko, Andrei

AU - Lazarev, Vladimir

AU - Sakharova, Tatiana

AU - Hinkel, Jonas

AU - Usenov, Iskander

AU - Dohler, Torsten

AU - Geisler, Ute

AU - Artyushenko, Viacheslav

N1 - Funding Information: The authors acknowledge the financial support of Russian Science Foundation (project No. 20-72-10027). Publisher Copyright: © 2021 IEEE.

PY - 2021/6

Y1 - 2021/6

N2 - AgClBr polycrystalline fibers with refractive index above 2 are used to transmit radiation of the infrared range. To improve the efficiency of AgClBr fiber based devices, it is beneficial to increase the fiber end faces transmittance. The conventional method for increasing the surface transmittance is to use antireflection coatings (ARCs). However, in the case of AgClBr ARCs cannot be applied to a fiber end face due to its unevenness. The plasticity and softness of the material prevent chipping, cleavage, and polishing. Thus a slicing technique should be used to cut the fiber, but even with the most precise technique perfect flatness cannot be achieved. An alternative approach is to fabricate antireflection microstructures (ARMs) [1] on the surface of a fiber end face. In this work a single-pulse direct femtosecond laser ablation for ARM fabrication was used. This technique provides good quality of ARM [2] and has already been tested on A 2 B 6 group semiconductors [3] which are promising gain media matrices [4] , chalcogenide glasses used for optical fiber production [5] , and infrared nonlinear crystals [6].

AB - AgClBr polycrystalline fibers with refractive index above 2 are used to transmit radiation of the infrared range. To improve the efficiency of AgClBr fiber based devices, it is beneficial to increase the fiber end faces transmittance. The conventional method for increasing the surface transmittance is to use antireflection coatings (ARCs). However, in the case of AgClBr ARCs cannot be applied to a fiber end face due to its unevenness. The plasticity and softness of the material prevent chipping, cleavage, and polishing. Thus a slicing technique should be used to cut the fiber, but even with the most precise technique perfect flatness cannot be achieved. An alternative approach is to fabricate antireflection microstructures (ARMs) [1] on the surface of a fiber end face. In this work a single-pulse direct femtosecond laser ablation for ARM fabrication was used. This technique provides good quality of ARM [2] and has already been tested on A 2 B 6 group semiconductors [3] which are promising gain media matrices [4] , chalcogenide glasses used for optical fiber production [5] , and infrared nonlinear crystals [6].

UR - http://www.scopus.com/inward/record.url?scp=85117582074&partnerID=8YFLogxK

U2 - 10.1109/CLEO/Europe-EQEC52157.2021.9542470

DO - 10.1109/CLEO/Europe-EQEC52157.2021.9542470

M3 - Conference contribution

AN - SCOPUS:85117582074

T3 - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021

BT - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021

Y2 - 21 June 2021 through 25 June 2021

ER -