Supercontinuum generation in As2S3 chalcogenide waveguide pumped by all-fiber structured dual-femtosecond solitons

Author:

Xia Kai123,Yang Zhen12,Zhao Peipei12,Yang Peilong12,Xu PeipengORCID,Xu Lulu12,Peng Xuefeng,Zhang Wei12,Dai Shixun12,Wang Rongping12ORCID,Nie Qiuhua12

Affiliation:

1. Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province

2. International Science & Technology Cooperation Base of Infrared Materials and Devices of Zhejiang Province

3. Ningbo Institute of Oceanography

Abstract

Supercontinuum sources with high compactness are essential for applications such as optical sensing, airborne detection and communication systems. In the past decades, the adoption of bulky optical parametric amplifier to pump various chalcogenide glass waveguides are widely reported for on-chip mid-infrared supercontinuum generation, but this usually leads to a large volume of the whole system, and is not practical. Therefore, integrating advanced femtosecond fiber lasers with optical waveguides using nano-fabrication technology are highly desired. However, the scarcity of compact pump sources and the dispersion-matched high-nonlinearity waveguide in short wavelength regions have hindered the advancement of integrated supercontinuum source performances in the near and mid-infrared region. In this study, we demonstrate a broadband supercontinuum source from As2S3 waveguide pumped by a compact dual-femtosecond solitons pulse source. The laser is completely fiber structured, and its wavelength can be readily tuned from 2 to 2.3 µm using Raman soliton self-frequency shift technology in a Tm3+-doped fiber amplifier. Furthermore, the As2S3 waveguide is designed with controllable dispersion and high nonlinearity for a broadband supercontinuum generation. These results will advance the development of on-chip supercontinuum sources based on chalcogenide waveguides.

Funder

National Natural Science Foundation of China

3315 Innovation Team in Ningbo City

Natural Science Foundation of Zhejiang Province

Natural Science Foundation of Ningbo

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

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