超连续谱
兹布兰
材料科学
光学
色散位移光纤
硫系化合物
纤维
色散(光学)
零色散波长
飞秒
光纤激光器
光子晶体光纤
波长
光纤
光电子学
激光器
光纤传感器
物理
复合材料
作者
Kai Jiao,Jinmei Yao,Wang XianGe,Xunsi Wang,Zheming Zhao,Bin Zhang,Nian Si,Jia Liu,Xiang Shen,Peiqing Zhang,Shixun Dai,Qiuhua Nie,Rongping Wang
出处
期刊:Optics Letters
[The Optical Society]
日期:2019-11-11
卷期号:44 (22): 5545-5545
被引量:22
摘要
A novel low-loss selenium-based chalcohalide fiber, with a low zero-dispersion wavelength, was prepared by an innovative preparation process. The composition optimized fiber has a wide transmission range of up to 11.5 μm, a lowest fundamental mode zero-dispersion wavelength of 4.03 μm, and a minimum optical loss of 1.12 dB/m at 6.4 μm, which provides a possibility to replace As2S3 and As2Se3 in a cascade of ZrF4−BaF2−LaF3−AlF3−NaF(ZBLAN)−As2S3−As2Se3 fiber in the practical all-fiberized supercontinuum (SC) source. Meanwhile, the broadest SC spectrum, ∼1.2 to 15.2 μm, was achieved by pumping a 12-cm-long fiber with a femtosecond laser at a deep anomalous-dispersion region. Furthermore, simulations are adopted to interpret the results as well as to demonstrate spectral evolution along the fiber. To the best of our knowledge, this is the broadest SC spectrum reported in any selenium-based chalcogenide fiber.
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