Application of Cr2Si2Te6 saturable absorber in Er-doped fiber laser for generating dual-wavelength mode-locked pulse

IF 2.5 3区 物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
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引用次数: 0

Abstract

As a typical two-dimensional (2D) ferromagnetic insulator (FI), the Cr2Si2Te6 (CST) has performance ferromagnetic properties. The previous investigation has shown that quantum mechanical simulation can get structure and electronic properties of CST, and the indirect gap value of CST is 0.6 eV by establishing its layered calculation. It implies that the CST is an excellent optical modulator due to larger infrared radiation absorption interval. Based on that, some groups conducted the research of fiber laser based on CST saturable absorber (SA). However, the exploration and application of 2D CST in optics is still in the early stage. In this investigation, the CST was utilized as a SA in an Er-doped fiber laser. The dual-wavelength mode-locked pulse could be observed when the pump power was adjusted from 25 to 140 mW. The CST was applied in Er-doped fiber as SA for generating dual-wavelength mode-locked pulse for the first time. It exhibits performance optical properties that provide a significant reference for exploring the application of 2D materials in ultrafast laser.

在掺铒光纤激光器中应用 Cr2Si2Te6 可饱和吸收器生成双波长锁模脉冲
作为一种典型的二维(2D)铁磁绝缘体(FI),Cr2Si2Te6(CST)具有良好的铁磁特性。此前的研究表明,量子力学模拟可以获得 CST 的结构和电子特性,并通过建立 CST 的分层计算得到其间接间隙值为 0.6 eV。这意味着 CST 具有较大的红外辐射吸收间隔,是一种优秀的光调制器。在此基础上,一些研究小组开展了基于 CST 可饱和吸收体(SA)的光纤激光器研究。然而,二维 CST 在光学领域的探索和应用仍处于早期阶段。在这项研究中,CST 被用作掺铒光纤激光器中的可饱和吸收体。当泵浦功率从 25 mW 调整到 140 mW 时,可以观察到双波长锁模脉冲。CST 首次作为 SA 应用于掺铒光纤中,用于产生双波长锁模脉冲。它所表现出的高性能光学特性为探索二维材料在超快激光中的应用提供了重要参考。
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来源期刊
CiteScore
5.00
自引率
3.70%
发文量
77
审稿时长
62 days
期刊介绍: This journal establishes a dedicated channel for physicists, material scientists, chemists, engineers and computer scientists who are interested in photonics and nanostructures, and especially in research related to photonic crystals, photonic band gaps and metamaterials. The Journal sheds light on the latest developments in this growing field of science that will see the emergence of faster telecommunications and ultimately computers that use light instead of electrons to connect components.
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