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Issue 37, 2018
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Few-layer bismuthene for ultrashort pulse generation in a dissipative system based on an evanescent field

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Abstract

Bismuthene has attracted a great deal of attention because of its unique electronic and optical properties. However, there are few reported applications of bismuthene in nonlinear optical applications. In this research, a dissipative soliton ytterbium-doped mode-locked fiber laser at 1 μm regime with a bismuthene saturable absorber (SA) by using evanescent field interaction for the first time is demonstrated. The nonlinear optical absorption of microfiber-based bismuthene SA is shown experimentally by using a homemade ultrafast fiber laser, whose saturation intensity and modulation depth are about 13 MW cm−2 and 2.2%, respectively. Relying on the excellent nonlinear optical property of the bismuthene SA, the typical dissipative solitons with a repetition rate of 21.74 MHz are generated at a center wavelength of 1034.4 nm. The time-bandwidth product of the pulse is about 23.07 with a pulse width of 30.25 ps. The results demonstrate that bismuthene is a good candidate for application in a 1 μm wave-breaking-free mode-locked fiber laser and nonlinear photonic components.

Graphical abstract: Few-layer bismuthene for ultrashort pulse generation in a dissipative system based on an evanescent field

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Publication details

The article was received on 16 Apr 2018, accepted on 16 Aug 2018 and first published on 03 Sep 2018


Article type: Paper
DOI: 10.1039/C8NR03068E
Nanoscale, 2018,10, 17617-17622

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    Few-layer bismuthene for ultrashort pulse generation in a dissipative system based on an evanescent field

    T. Chai, X. Li, T. Feng, P. Guo, Y. Song, Y. Chen and H. Zhang, Nanoscale, 2018, 10, 17617
    DOI: 10.1039/C8NR03068E

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