Numerical exploration of chalcogenide microstructured fiber for ultrabroadband supercontinuum generation of optical vortices

Wen Y.; Huang L.; Qu Y.Sun W.Cao J.Jia H.

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Numerical exploration of chalcogenide microstructured fiber for ultrabroadband supercontinuum generation of optical vortices

机译：Numerical exploration of chalcogenide microstructured fiber for ultrabroadband supercontinuum generation of optical vortices

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? 2022 Elsevier Inc.We propose a microstructured fiber with an AsSe2 ring and two well-ordered air hole rings for supercontinuum generation of optical vortex modes. The fiber features a near-zero and flat dispersion of OAM1,1 with variation between ?14.53 to ?0.19 ps/nm/km over a 6600 nm bandwidth from 4000 to 10600 nm and a small confinement loss of < 1 dB/m up to 14700 nm. A coherent supercontinuum spectrum of the vortex mode (OAM1,1) is generated from 1550 to 14484 nm at ?40 dB by launching a 100 fs pulse with 120 kW peak power into a 30 mm long microstructured fibers. The high-order OAM (l = 4) supercontinuum spectrum ranging from 1805 to 15022 nm can be generated by launching a 100 fs laser pulse with a peak power of 60 kW at 7.0 μm in the proposed fiber. We also discussed the influence of different noise levels, propagation distances and pumping powers on the coherence.

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《Optical fiber technology》 |2022年第9期|1.1-1.8|共8页
作者
Wen Y.; Huang L.; Qu Y.Sun W.Cao J.Jia H.;
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Engineering Research Center of Optical Instruments and Systems Ministry of Education Shanghai Key Laboratory of Modern Optical Systems School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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Microstructured fibers; Nonlinear optics; Optical vortices; Supercontinuum generation;

Numerical exploration of chalcogenide microstructured fiber for ultrabroadband supercontinuum generation of optical vortices

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