Acta Optica Sinica, Volume. 41, Issue 10, 1006003(2021)
Fabrication and Optical Properties of a Novel Seven-Core High-NA Chalcogenide Glass Fiber Based on Extrusion
A novel seven-core chalcogenide glass fiber was fabricated via extrusion. Firstly, two glasses, As2Se3 and As2S3, were prepared by distillation purification and melt-quenching. Then, an improved isolated extrusion method was used to fabricate the optical fiber preforms. In addition, a novel seven-core chalcogenide glass fiber of a complete structure was obtained with the protection of the high-temperature polymer layer, with the numerical aperture (NA) in the range of 1.20 to 1.45. Its loss was measured by the cutback method, with a minimum of 1.9 dB/m@4.4 μm. Finally, pumping with femtosecond laser from an optical parametric amplifier (OPA) yielded a supercontinuum covering 1.5--12 μm in a 14-cm long seven-core fiber, demonstrating excellent nonlinearity of this fiber. In summary, this fiber shows great potential in both mid-infrared research and technical applications.
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Guolin Wu, Zan Feng, Jun Wang, Jinjing Wang, Minghui Zhong, Tiesong Xu, Xiaolin Liang, Jing Xiao, Xiange Wang, Kai Jiao, Zheming Zhao, Xunsi Wang, Peiqing Zhang, Yongxing Liu, Shixun Dai, Qiuhua Nie. Fabrication and Optical Properties of a Novel Seven-Core High-NA Chalcogenide Glass Fiber Based on Extrusion[J]. Acta Optica Sinica, 2021, 41(10): 1006003
Category: Fiber Optics and Optical Communications
Received: Sep. 1, 2020
Accepted: Dec. 15, 2020
Published Online: May. 8, 2021
The Author Email: Wang Xunsi (xunsiwang@siom.ac.cn)