Article
Optics
Wenxiong Du, Heping Li, Junwen Li, Zhuang Wang, Zhiyao Zhang, Shangjian Zhang, Yong Liu
Summary: In this study, various pulsating period-doubled solitons (PDSs) were experimentally investigated in a fiber laser mode-locked by single-wall carbon nanotubes. Both single- and double-periodic PDS pulsations were observed, and the polarization-resolved transient spectra of these pulsating PDSs were measured using dispersive Fourier transform technique. The results revealed interesting intensity-modulation behaviors and rotations of polarization ellipses, providing insights into the vector features of multiple-period pulsating solitons in mode-locked fiber lasers.
Article
Optics
Yiran Wang, Xiancui Su, Yiyan Xie, Feilong Gao, Santosh Kumar, Qinglin Wang, Cailong Liu, Bingyuan Zhang, Baitao Zhang, Jingliang He
Summary: This study demonstrates the generation of ultra-short pulses from a Kerr-lens mode-locked Yb:CALGO oscillator, achieving pulse durations corresponding to approximately 4.8 optical cycle pulses. The dispersion compensation using a prism pair combined with broadband chirp mirrors played a key role in achieving the shortest pulse durations through a Yb-doped bulk oscillator.
Article
Physics, Applied
Ping Hu, Jiajia Mao, Xue Zhou, Tianli Feng, Hongkun Nie, Ruihua Wang, Jintian Bian, Baitao Zhang, Tao Li, Jingliang He, Kejian Yang
Summary: In this study, we experimentally and theoretically investigated the generation of dual-wavelength noise-like pulses in a nonlinear polarization rotation-based mode-locked Ho-doped fiber ring laser. By carefully adjusting the pump power and polarization state, we achieved dual-wavelength noise-like pulses at 2041.9 and 2083.3 nm, corresponding to a pulse energy of 11.84 nJ and a pulse duration of 849 fs. This is believed to be the first report on dual-wavelength noise-like pulse operation in Ho-doped fiber lasers previously reported.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
Article
Physics, Applied
Ri Yan, Renjiang Zhu, Yadong Wu, Tao Wang, Lidan Jiang, Huanyu Lu, Yanrong Song, Peng Zhang
Summary: A self-mode-locked vertical-external-cavity surface-emitting laser operates at the edge of the stable region of the resonant cavity, with a tighter focus on the gain chip compared to a continuous-wave laser. This mitigates cavity loss and enables successive mode-locking, but limits the laser's output power. To overcome this, we propose moving the laser's work point slightly and extending the pump spot, achieving stable self-mode-locking with a record average output power of 8.18 W.
APPLIED PHYSICS LETTERS
(2023)
Article
Optics
Elisa Riccardi, Valentino Pistore, Seonggil Kang, Lukas Seitner, Anna De Vetter, Christian Jirauschek, Juliette Mangeney, Lianhe Li, A. Giles Davies, Edmund H. Linfield, Andrea C. Ferrari, Sukhdeep S. Dhillon, Miriam S. Vitiello
Summary: By using multilayer graphene saturable absorbers, we have successfully demonstrated a self-starting miniaturized short pulse terahertz laser, which utilizes an original device architecture with surface patterning in the entire cavity of a double-metal semiconductor 2.30-3.55 THz wire laser. This compact, all-electronic, all-passive, and inexpensive configuration achieves self-starting pulsed emission with 4.0 ps-long pulses.
Article
Multidisciplinary Sciences
Stijn Cuyvers, Stijn Poelman, Kasper Van Gasse, Bart Kuyken
Summary: Semiconductor-based mode-locked lasers play a crucial role in applications such as datacom and optical spectroscopy, but their performance is still hard to predict, leading to significant research efforts in modeling. While traveling-wave models are popular, they struggle to incorporate nonlinear and dispersive effects of extended laser cavities. A hybrid modeling strategy has been developed to overcome these challenges, unifying semiconductor laser section modeling with a split-step Fourier method for the extended passive laser cavity.
SCIENTIFIC REPORTS
(2021)
Article
Optics
Alexey Andrianov, Arkady Kim
Summary: The study demonstrates a new type of stable and highly elastic soliton crystal, where the bond length and strength can be individually controlled for repeated stretching and compressing. Experimental results show continuous stretching and compression of the soliton crystal, as well as collective pulse dynamics.
Article
Optics
Jiahe LI, Weiqi Jiang, Yafei Meng, Fengqiu Wang
Summary: Hysteresis, a common phenomenon in passively mode-locked lasers, refers to the effect where the thresholds marking transitions between different pulsation states are not the same for increasing or decreasing pump power. This letter fully characterizes a figure-9 fiber laser cavity and reveals the relationship between hysteresis and cavity parameters.
Article
Optics
Xueyao Liu, Yanfeng Yu, Nannan Xu, Xinxin Shang, Pu Huang, Daizhou Zhang, Jianwei Jiang, Xing Wang, Hua Lu, Huanian Zhang, Dengwang Li
Summary: This study reports the preparation and characterization of CGT nanosheets using the liquid-phase exfoliation method. The application of CGT nanosheets in fiber lasers allows for passive Q-switching and modelocking operations. The results show that CGT nanosheets have the potential to be used in future high-performance photonic devices.
JOURNAL OF LUMINESCENCE
(2022)
Article
Optics
Ping Hu, Jiajia Mao, Xue Zhou, Tianli Feng, Hongkun Nie, Ruihua Wang, Baitao Zhang, Tao Li, Jingliang He, Kejian Yang
Summary: A passively Ho-doped fiber laser at 2 μm with soliton rain and noise-like pulse operation regime has been achieved by using NPR technology. By adjusting the pump power and polarization state, the soliton rain pulse and NLP mode-locking operation regime are obtained, demonstrating the evolution of ultrashort pulse regime.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Optics
Tianhao Dong, Jiaqiang Lin, Chun Gu, Peijun Yao, Lixin Xu
Summary: A passively mode-locked cascaded Raman fiber laser is proposed and demonstrated in a linear cavity, utilizing nonlinear polarization rotation and a polarization beam splitter for mode-locking. The laser operates at a low pump power level with up to three orders Raman frequency shift observed under the given pump power conditions. The maximum output average power, single pulse energy, and slope efficiency of the laser are 119.3 mW, 63.97 nJ, and 41.7%, respectively, with the capability of generating multi-pulse mode-locked operation by adjusting a polarization controller under suitable pump power.
OPTICS COMMUNICATIONS
(2021)
Article
Optics
Qing Xu, Guoru Li, Hongkun Nie, Kejian Yang, Tao Li, Jingliang He, Baitao Zhang
Summary: In this study, bound state solitons are generated using microfiber and In2Se3 nanosheets, and the relationship between the number of bound state solitons and pump power is demonstrated through experiments and theoretical simulations. The internal dynamics of pulse generation are also studied in depth.
OPTICS COMMUNICATIONS
(2022)
Article
Optics
Jiali Liao, Yizhou Tan, Yang Gao, Zihao Wang, Yanling Sun, Lin Ma, Xiujian Li
Summary: The study investigates soliton evolution in photonic crystal waveguides, revealing the dual opposite effects of giant self-steepening on temporal soliton compression. These effects compete with third-order dispersion through different physical mechanisms, playing a significant role in soliton evolution.
Article
Optics
Ya Tian, Cheng Gong, Xiangming Hu, XiaoJun Liu
Summary: This paper investigates the dynamics of light bullets during femtosecond laser filamentation in an anomalous dispersion regime, focusing on the experimentally observed blueshifted resonant radiation in fused silica. A numerical simulation reproduces the pronounced asymmetric feature of the RR spectra, revealing a close connection to the positively chirped property of RR in the time domain. The temporal chirp character of RR is attributed to the variable phase-matching conditions during the accelerative propagation of the light bullet, providing a deep understanding of femtosecond laser-pulse propagation in condensed media.
Article
Optics
Shangming Ou, Zhenqin Yu, Liang Guo, Qingmao Zhang, Nan Zhang, Huanhuan Liu, Perry Ping Shum
Summary: This paper demonstrates a novel fundamentally mode-locked, GHz-repetition-rate ring cavity Yb-doped femtosecond fiber laser enabled by SESAM mode-locking. The laser operates bidirectionally and generates two synchronous polarization-multiplexed output pulse trains, which can be combined to generate tunable waveforms.
Article
Nanoscience & Nanotechnology
Ying Zhang, Xiaohui Li, Abdul Qyyum, Tianci Feng, Penglai Guo, Jie Jiang
Article
Physics, Multidisciplinary
Jishu Liu, Xiaohui Li, Yixuan Guo, Abdual Qyyum, Zhaojiang Shi
ANNALEN DER PHYSIK
(2020)
Article
Nanoscience & Nanotechnology
Wenfeng Luo, Xiaoyu Liu, Xiaohui Li, Shuyuan Lv, Wenxiong Xu, Lu Wang, Zhaojiang Shi, Chenxi Zhang
Summary: The research explored the application of SnSe2 as a saturable absorber in high nonlinear nanosheets in fiber lasers, successfully achieving the formation of dissipative solitons and observing various complex optical phenomena.
Article
Chemistry, Physical
Shuyuan Lv, Yujie Ren, Xiaohui Li, Hongpei Wang, Wenfeng Luo, Yang Zhao, Xiaoyu Liu, Ziyang Zhang, Xu Wang, Hongmei Chen, Tikang Shu
Summary: FeS2 has shown excellent performance as a saturable absorber in ultrahigh-speed optical modulators and next-generation high-performance nonlinear photonic devices, making it an ideal material for such applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Wenfeng Luo, Yujie Ren, Jiangjiang Feng, Xiaohui Li, Shuyuan Lv, Mengjia Qu, Lirong Jing, Xiaohan Chen
Summary: In this study, silver sulfide (Ag2S) was utilized as a saturable absorber in a fiber laser, achieving stable dual-wavelength mode locking and tunable multi-wavelength operation. This result could serve as valuable reference for the development of multifunctional compact fiber lasers.
Article
Nanoscience & Nanotechnology
Linrui Li, Xiaohui Li, Yang Zhao, Jiangjiang Feng, Chenxi Zhang, Yuan Shi, Yanqi Ge, Yani Zhang
Summary: In this study, few-layer VSe2 nanosheets were prepared by liquid phase exfoliation method and utilized for high frequency modulation and ultrafast light pulse generation in a fiber laser. The experimental results demonstrate the potential of VSe2 as a promising material for ultrafast optical modulation devices.
Review
Nanoscience & Nanotechnology
Ya-Ni Zhang, Zhuo-Ying Song, Dun Qiao, Xiao-Hui Li, Zhe Guang, Shao-Peng Li, Li-Bin Zhou, Xiao-Han Chen
Summary: 2D van der Waals materials, with atomic thickness layers and rich distinct properties, have been extensively used in the field of ultrafast photonics. This article provides a detailed description of the photoelectric characteristics, nonlinear characteristic measurement techniques, and preparation technology of 2D van der Waals materials. It also summarizes the development of ultrafast pulsed fiber lasers based on different types of 2D materials. Furthermore, it reviews and summarizes the opportunities and research results of ultrafast pulsed fiber lasers based on the latest 2D van der Waals materials.
Article
Chemistry, Multidisciplinary
Xiaohui Li, Mingqi An, Gang Li, Yueheng Han, Penglai Guo, Enci Chen, Jiyi Hu, Zhuoying Song, Hongbing Lu, Jiangbo Lu
Summary: In this study, a porous dodecahedral rGO-Co3O4 material was successfully synthesized and used for the fabrication of an optical modulator. By adjusting the dispersion management, the erbium-doped fiber laser based on this material could generate dissipative solitons and square wave pulses. The experimental results demonstrated that the material can serve as an excellent nonlinear optical modulator and provide a new choice for material processing.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Physics, Multidisciplinary
Dan Zhang, Guangliang Lu, Yang Qiu, Siqi Qin, He Wang, Jiangang Jiang, Wenquan Zhou, Ping Zhang, Hongchang An, Xiaohui Li
Summary: In this study, SnS2 is successfully applied in a fiber laser and multi-pulse soliton molecules are observed. The investigation of different order bound states in the cavity shows that optical solitons can self-assemble into highly ordered supramolecular structures. This research has potential applications in ultrafast laser-field manipulation and optical information storage.
ANNALEN DER PHYSIK
(2022)
Article
Nanoscience & Nanotechnology
Xiaohui Li, Yueheng Han, Zhaojiang Shi, Mingqi An, Enci Chen, Jiangjiang Feng, Qi Jie Wang
Summary: The technological revolution of two-dimensional materials has brought vitality to ultrafast optics. Indium sulfide (In2S3), with its unique properties, has great potential in the field of nonlinear optics. In this study, 2D beta-In2S3 nanoplates were synthesized and investigated as a saturable absorber for ultrafast optics.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Xiaohui Li, Wenshuai Xu, Yamin Wang, Xiaoli Zhang, Zhanqiang Hui, Han Zhang, S. Wageh, Omar A. Al-Hartomy, Abdullah G. Al-Sehemi
Summary: Nanomaterials have attracted great attention in the field of ultrafast photonics due to their proper band gap, multiple structure, and stable chemical property. Studies have found that nanopowder PbTe shows better light intensity modulation capability compared to bulk PbTe and has achieved 830 fs laser pulses.
APPLIED MATERIALS TODAY
(2022)
Article
Materials Science, Multidisciplinary
Chenxi Zhang, Xiaohui Li, Yamin Wang, Mingqi An, Zhipeng Sun
Summary: Hydrazone organic compounds with strong conjugation effects exhibit superior characteristics such as high nonlinear optical sensitivity, short response times, unique electronic spectra, and photothermal stability. By applying Hydrazone-1 to an erbium-doped fiber laser, a 922 fs traditional soliton mode-locked pulse was obtained and five bound-state soliton molecules were observed for the first time. These experiments demonstrate the strong optical properties of hydrazone compounds, indicating their potential as ultrashort pulse light sources with further research and exploration.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Ya-min Wang, Hao Huang, Xiao-hui Li, Kaixue Ma, Yang Zhao, Ya-xin Chen, Jiang-jiang Feng, Jie Liu, Chuang Zheng
ACS APPLIED NANO MATERIALS
(2020)
Article
Nanoscience & Nanotechnology
Tianci Feng, Dan Zhang, Xiaohui Li, Qyyum Abdul, ZhaoJiang Shi, Jiangbo Lu, Penglai Guo, Ying Zhang, Jishu Liu, Qi Jie Wang
ACS APPLIED NANO MATERIALS
(2020)
Article
Computer Science, Information Systems
Liqiang Zhang, Zhen Tian, Nan-Kuang Chen, Kenneth T. V. Grattan, Yicun Yao, B. M. Azizur Rahman, Xiaohui Li, Chengkai Yao, Haili Han, Hsiang-Chen Chui, Shien-Kuei Liaw
