2.5-Octave supercontinuum generation in a Ta2O5 waveguide pumped by a dual-wavelength fiber laser

Near 2.5-octave supercontinuum (SC) generation spanning from 0.5 to 2.9 μm is reported in a well dispersion-engineered Ta2O5 waveguide pumped by a dual-wavelength femtosecond fiber laser at 1.55 μm and 1.97 μm, respectively, which is the broadest spectrum reported so far in Ta2O5 material platform....

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Bibliographic Details
Published inJournal of lightwave technology pp. 1 - 7
Main Authors Zhang, Zheng, Xia, Kai, He, Xiwen, Song, Maozhuang, Yang, Peilong, Xu, Peipeng, Yan, Kunlun, Yang, Zhen, Bai, Shengchuang, Wang, Xunsi, Yousef, El Sayed, Dai, Shixun, Shen, Li, Zhou, Zhiping, Wang, Rongping
Format Journal Article
LanguageEnglish
Published IEEE 10.10.2024
Subjects
nonlinear optics
super continuum generation
Ta2O5 waveguide
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Summary:Near 2.5-octave supercontinuum (SC) generation spanning from 0.5 to 2.9 μm is reported in a well dispersion-engineered Ta2O5 waveguide pumped by a dual-wavelength femtosecond fiber laser at 1.55 μm and 1.97 μm, respectively, which is the broadest spectrum reported so far in Ta2O5 material platform. Moreover, there are no residual pump components in the spectrum, and the pulse energy conversion efficiency shows a record level of around 92%. Additionally, the fluctuation of the output power stability is within 0.33% over an hour. The results demonstrate the enormous potential applications of the Ta2O5 waveguides in nonlinear integrated photonics
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2024.3478363