Photoluminescence of an Yb<sup>3+</sup>/Al<sup>3+</sup>-codoped microstructured optical fibre

This paper discusses the technology of orderly printing of microdroplets by means of electrohydrodynamic print (EHDP) with alternating current (AC). The AC electric field induces charges to reciprocate in the electrohydrodynamic charged jet and generates periodic alternation of electric field force, which facilitates the breakup of charged jets and injection of microdroplets. Microdroplets with a diameter of 100~300 μm can be printed with a frequency of 5~25 Hz via AC EHDP. Effects of process parameters on the microdroplet injection behaviors were investigated. A higher frequency of applied AC voltage led to a higher deposition frequency, but smaller diameters of printed droplets. Deposition frequency and droplet diameters increased with the increase of duty cycle and solution supply rate. AC pulse voltage has provided a novel way to study the control technology in EHDP, which would accelerate the application of inkjet printing in the field of micro/nanosystem production.

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Orbital-angular-momentum-amplifying helical vector modes in Yb³⁺-doped three-core twisted microstructure fiber

Li¹,

Zhou²,

Liu³

et al. 2020

Opt. Express

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A helical Yb3+-doped three-core microstructure fiber (YTMF) amplifier is proposed in this paper, so as to solve the problem of generation and transmission of the orbital angular momentum (OAM) beams. The fiber is composed of three Yb3+-doped cores with a regular triangle shape and a longitudinal helical structure. The experimental results show that the 1064nm laser can be amplified due to the fluorescence amplification characteristics of the doped material Yb3+. Furthermore, theoretical analysis indicates the modes in YTMF at 1064nm, which is located in the amplified wavelength, can support nine modes carrying OAM. Therefore, the related experiments were performed and verified that the transmission modes can respectively carry 1, 2, and 3-order OAM at 1064nm in different coupling cases. These excellent properties indicate that the combination of doped materials and helical fiber provide favorable conditions for the generation and amplification of OAM, which provides a basis for the further development of OAM beams in the field of quantum communication and dense space division multiplexing.

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Photoluminescence of an Yb³⁺/Al³⁺-codoped microstructured optical fibre

Abstract: Xia Chang-Ming( ) a)b) , Zhou Gui-Yao( ) a)b) † , Han Ying( ) a) , and Hou Lan-Tian( ) a)

Cited by 4 publications

References 21 publications

Energy up-conversion in Tb3+/Yb3+ co-doped colloidal α-NaYF4 nanocrystals

Energy up-conversion in Tb3+/Yb3+ co-doped colloidal α-NaYF4 nanocrystals

Alternating Current Electrohydrodynamic Printing of Microdroplets

Orbital-angular-momentum-amplifying helical vector modes in Yb³⁺-doped three-core twisted microstructure fiber

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Photoluminescence of an Yb3+/Al3+-codoped microstructured optical fibre

Abstract: Xia Chang-Ming( ) a)b) , Zhou Gui-Yao( ) a)b) † , Han Ying( ) a) , and Hou Lan-Tian( ) a)

Cited by 4 publications

References 21 publications

Energy up-conversion in Tb3+/Yb3+ co-doped colloidal α-NaYF4 nanocrystals

Energy up-conversion in Tb3+/Yb3+ co-doped colloidal α-NaYF4 nanocrystals

Alternating Current Electrohydrodynamic Printing of Microdroplets

Orbital-angular-momentum-amplifying helical vector modes in Yb3+-doped three-core twisted microstructure fiber

Contact Info

Product

Resources

About

Photoluminescence of an Yb³⁺/Al³⁺-codoped microstructured optical fibre

Orbital-angular-momentum-amplifying helical vector modes in Yb³⁺-doped three-core twisted microstructure fiber