Multi-state broadband spectrum and ultra-short pulse spatiotemporal mode-locked Yb-doped multimode fiber laser

IF 4.6 2区 物理与天体物理 Q1 OPTICS Optics and Laser Technology Pub Date : 2024-11-23 DOI:10.1016/j.optlastec.2024.112149
Haoxue Qiu, Yong Yao, Yu Yang, Linguang Guo, Songting Li, Xiaochuan Xu, Jiajun Tian, Yanfu Yang
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Abstract

In the multimode fiber laser, a phenomenon of multi-state broadband spectrum and ultra-short pulse spatiotemporal mode-locking (STML) is obtained. The dissipative soliton, multiple pulses, harmonic pulse and bound soliton can be observed by rotating the polarization controllers(PCs). The spectral bandwidth of dissipative soliton is 19.04 nm at the central wavelength of 1039.40 nm, and the pulse width is 3.58 ps, acquiring the widest spectrum and the shortest pulse in an all-fiber dissipative soliton STML laser. As the STML state changes from dissipative soliton to bound soliton, spectral bandwidth decreases slightly. The spectral width and modulation period of the loose bound soliton with central wavelength of 1038.24 nm are 18.03 nm and 0.76 nm, respectively. We realize the conversion between the multiple states, which provides a scheme for the study of nonlinear soliton dynamics.
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多态宽带光谱和超短脉冲时空模式锁定掺镱多模光纤激光器
在多模光纤激光器中,获得了多态宽带光谱和超短脉冲时空模式锁定(STML)现象。通过旋转偏振控制器(PC)可以观测到耗散孤子、多脉冲、谐波脉冲和约束孤子。在中心波长为 1039.40 nm 时,耗散孤子的光谱带宽为 19.04 nm,脉冲宽度为 3.58 ps,获得了全光纤耗散孤子 STML 激光器中最宽的光谱和最短的脉冲。当 STML 状态从耗散孤子变为束缚孤子时,光谱带宽略有下降。中心波长为 1038.24 nm 的松散束缚孤子的光谱宽度和调制周期分别为 18.03 nm 和 0.76 nm。我们实现了多态之间的转换,为非线性孤子动力学研究提供了一种方案。
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来源期刊
CiteScore
8.50
自引率
10.00%
发文量
1060
审稿时长
3.4 months
期刊介绍: Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems
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