A nano-lateral heterojunction of selenium-coated tellurium for infrared-band soliton fiber lasers.,Nanoscale

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A nano-lateral heterojunction of selenium-coated tellurium for infrared-band soliton fiber lasers.
Nanoscale ( IF 5.8 ) Pub Date : 2020-07-03 , DOI: 10.1039/d0nr02548h
Yufeng Song ₁ , Kaixi You ₁ , Jinlai Zhao ₁ , Dazhou Huang ₁ , Yunxiang Chen ₁ , Chenyang Xing ₁ , Han Zhang ₁

Affiliation

In this work, ultrafast fiber lasers based on 2D selenium-coated tellurium nanosheets in the infrared band are reported. 2D selenium-coated tellurium as a mode locker is shown with broadband saturable absorption and is capable of supporting ultra-stable pulse trains with several hundred-femtosecond pulse widths in the laser cavity. In particular, the as-fabricated 2D selenium-coated tellurium based fiber laser source operating in the communication band (1.5 μm) exhibits the vector pulse property, which supports the study of the vector soliton in ultrafast fiber lasers. The pulse duration of vector solitons is as short as 800 fs. The 2D selenium-coated tellurium is also available for a mode locked fiber laser operating at 1 μm. The laser oscillator has a pulse duration of several picoseconds and the pulse train is ultra-stable after an amplification to 100 mW, which is a promising seed source in the chirped-pulse amplification system in the future.

中文翻译：

硒包覆碲的纳米级异质结，用于红外波段孤子光纤激光器。

在这项工作中，报道了基于红外波段的2D硒包覆碲纳米片的超快光纤激光器。二维硒镀碲作为锁模器具有宽带可饱和吸收能力，能够在激光腔中支持具有几百飞秒脉冲宽度的超稳定脉冲串。尤其是，在通信频段（1.5μm）下工作的2D硒包覆的碲基光纤激光光源显示出矢量脉冲特性，这支持了超快光纤激光器中矢量孤子的研究。矢量孤子的脉冲持续时间短至800 fs。2D硒涂层碲也可用于工作在1μm的锁模光纤激光器。

更新日期：2020-07-23

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