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Journal of Modern Optics Volume 66, 2019 - Issue 11
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Original Articles

Visible to mid-infrared supercontinuum generated in novel GeS2–Ga2S3–CsI step-index fibre

Wenyong WeiLaboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo, People’s Republic of China;Key laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo, People’s Republic of ChinaView further author information
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Xuefeng PengLaboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo, People’s Republic of China;Key laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo, People’s Republic of ChinaView further author information
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Shixun DaiLaboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo, People’s Republic of China;Key laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo, People’s Republic of ChinaCorrespondence[email protected]
View further author information
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Yingying WangLaboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo, People’s Republic of China;Key laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo, People’s Republic of ChinaView further author information
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Min XieLaboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo, People’s Republic of China;Key laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo, People’s Republic of ChinaView further author information
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Chenfeng YangLaboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo, People’s Republic of China;Key laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo, People’s Republic of ChinaView further author information
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Guangtao LiLaboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo, People’s Republic of China;Key laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo, People’s Republic of ChinaView further author information
&
Peilong YangLaboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo, People’s Republic of China;Key laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo, People’s Republic of ChinaView further author information
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Pages 1190-1196 | Received 26 Sep 2018, Accepted 12 Apr 2019, Published online: 14 May 2019
 
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ABSTRACT

In this work, two kinds of GeS2–Ga2S3–CsI chalcogenide glasses had been fabricated in conventional meltquenching method, and these glasses express excellent transmittance (0.52–10.5 µm), low refractive index difference, high Raman gain and good thermal stability against crystallization. We designed a highly nonlinear step-index fibre consisting of a 72GeS2–18Ga2S3–10CsI core and a 73GeS2–15Ga2S3–12CsI cladding with the zero dispersion wavelength in near-infrared (<1 µm), and theoretically analysed the optical and nonlinear characteristics of this fibre in detail. Substantial simulation results revealed that wide ultra-flat supercontinuum broadening from the visible to the mid-infrared range can be achieved by pumping this fibre at 1064 nm.

Additional information

Funding

This project was sponsored by the National Natural Science Foundation of China (grant numbers 61435009 and 61377099) and the K. C. Wong Magna Fund in Ningbo University.

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