Article
Optics
M. Duran-Sanchez, R. alvarez-Tamayo, Y. A. Garcia-Flores, O. Pottiez, B. Posada-Ramirez, M. Bello-Jimenez, J. Alaniz-Balon, I Armas-Rivera, E. Montiel-Pina, B. Ibarra-Escamilla
Summary: This experimental approach demonstrates synchronized dual-wavelength pulsed operation in an all-fiber laser, generating four different dual-wavelength emissions with wavelength separations ranging from 0.96 to 9 nm. The results show stable dual-wavelength operation and perfect synchronization between the pulsed components without the need for intra-cavity dispersion management.
LASER PHYSICS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Jia Shi, Miao Zhao, Xianguo Li, Boya Shi, Di Wang, Shaona Wang, Xiuyan Li, Hua Bai, Pingjuan Niu, Jianquan Yao
Summary: This paper presents a temperature measurement method with error suppression using a dual-wavelength FRL. By sensing the intensity difference of two excited wavelengths, the measurement error has been effectively decreased.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Optics
Liqiang Zhang, Yicun Yao, Xiaohui Li, Nan-Kuang Chen, Chenglin Bai, Fan Yang, Zhen Tian, Yingying Ren, Minghong Wang
Summary: By exploiting the reflect pulse from the polarization beam splitter, we have successfully achieved synchronously mode-locked dual-wavelength dissipative sub-pulses in a Yb-doped passively mode-locked fiber laser. Numerical simulation and experimental results demonstrate the unique behavior of these dual-wavelength pulses and the ability to control the central wavelengths and interval by adjusting the cavity parameters.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Physics, Multidisciplinary
Wen-Yan Zhang, Kun Yang, Li-Jie Geng, Nan-Nan Liu, Yun-Qi Hao, Tian-Hao Xian, Li Zhan
Summary: The experimental observations demonstrate the generation of domain-wall solitary pulses using a net anomalous dispersion Er-doped fiber ring laser without polarization-selective elements. By adjusting the pump power and polarization state appropriately, both bright and dark solitons can stably co-exist in the cavity. The use of a thulium-doped fiber as the saturable absorber enables the laser to exhibit good stability, which may have a significant impact on improving pulse-laser design and expanding practical applications in optical sensing, optical communication, and soliton multiplexed systems.
Article
Physics, Multidisciplinary
Wen-Wen Cui, Xiao-Wei Xing, Yue-Qian Chen, Yue-Jia Xiao, Han Ye, Wen-Jun Liu
Summary: Fiber lasers with different net dispersion cavity values can generate various types of solitons by selecting different saturable absorbers. A new layered high-entropy van der Waals material (HEX) (Mn,Fe,Co,Ni)PS3 was used as a saturable absorber to achieve a high-power laser output of 34 mW. Moreover, the wavelength can be dynamically tuned from 1560 nm to 1531 nm with significant dual-wavelength phenomena at 460 fs pulse duration.
CHINESE PHYSICS LETTERS
(2023)
Article
Optics
I Armas-Rivera, L. A. Rodriguez-Morales, M. Duran-Sanchez, M. Avazpour, A. Carrascosa, E. Silvestre, E. A. Kuzin, M. Andres, B. Ibarra-Escamilla
Summary: This work introduces a simple polarization-maintaining wavelength-tunable passive mode-locked Erbium-doped fiber laser with a semiconductor saturable absorber mirror (SESAM) as a mode locker. Tunable mode-locking in the range of 1543.2 nm to 1569.5 nm was achieved by thermally adjusting the FOLM wavelength reflection, resulting in output pulses with a repetition rate of 11.16 MHz and a pulse duration of about 0.9 ps. The experimental results were verified through numerical simulations.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Rui Jin, Zhongzheng Yuan, Yingjie Wu, Chao Wang
Summary: A novel dual-wavelength wide-spectrum erbium-doped fiber ring laser (EDFRL) is proposed and demonstrated for optical fiber sensing. The output of EDFRL is classified into excited state and nonexcited state based on theoretical analysis. The influence of pump wavelength, fiber laser configuration, EDF length and output coupling ratio on EDFRL is discussed. The EDFRL pumped at 1480 nm wavelength and backward-pumped mode achieves stable wide-spectrum output power with low power fluctuation and center wavelengths shift. The practicability of EDFRL in a hybrid M-Z and Sagnac interferometer optical fiber sensing system is demonstrated, indicating its potential to replace traditional SLD at a lower cost.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Olga Szewczyk, Piotr Pala, Karol Lech Tarnowski, Jacek Olszewski, Chuang Lu, Aleksandra Foltynowicz, Francisco Senna Vieira, Pawel Mergo, Jaroslaw Sotor, Grzegorz Sobon, Tadeusz Martynkien
Summary: The study introduces a microstructured silica-based fiber design for widely tunable soliton self-frequency shift with high conversion efficiency, strong birefringence, and excellent polarization extinction ratio, covering important wavelengths and demonstrating high coherence in shifted solitons.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Optics
Hani J. Kbashi, Vishal Sharma, Sergey Sergeyev
Summary: Dual-wavelength fiber lasers have been developed as an attractive option for various applications such as optical imaging, communication, sensing, and signal generation. The experiment demonstrated a switchable dual-wavelength fiber laser capable of generating radio frequency signals in the millimeter band with flexibility and stability. The potential applications of this laser include 5G networks, internet of things, surveillance, monitoring, remote sensing, self-driving vehicles, photonics-based radar systems, and meteorology.
OPTICS AND LASERS IN ENGINEERING
(2021)
Article
Optics
Runmin Liu, Defeng Zou, Shuang Niu, Youjian Song, Minglie Hu
Summary: In this study, we use the real-time spectral measurement technique of time-stretch Fourier transform to reveal the influence of collisions on the dynamical transitions of dual-color soliton molecules in dual-wavelength mode-locked fiber lasers. We find that reversible transitions between stationary soliton molecules and vibrating soliton molecules can occur during collisions without external intervention. Numerical results confirm the universality of collision-induced bifurcation behavior. These findings provide new insights into collision dynamics in dual-wavelength ultrafast fiber lasers.
Article
Optics
Runmin Liu, Defeng Zou, Shuang Niu, Youjian Song, Minglie Hu
Summary: In this study, the influence of collisions on the dynamical transitions in dual-wavelength mode-locked fiber lasers is investigated. By utilizing real-time spectral measurement technique, the reversible transitions of dual-color soliton molecules during collisions are revealed. These findings provide new insights into collision dynamics in dual-wavelength ultrafast fiber lasers.
Article
Optics
Maciej Kowalczyk, Lukasz A. Sterczewski, Xuzhao Zhang, Valentin Petrov, Jaroslaw Sotor
Summary: This article reports the first solid-state dual-comb mode-locked laser that can simultaneously operate in different dispersion regimes. By exploiting the intrinsic polarization multiplexing in a birefringent gain medium, the laser emits two pulse trains with a small repetition rate offset. Dual pulse generation with different durations is achieved by controlling the net cavity group delay dispersion.
Article
Optics
Yang Li, Haoguang Yao, Chenchen Fan, Xiulu Hao, Tianfu Yao, Pu Zhou, Xianglong Zeng
Summary: Researchers have demonstrated an all-fiberized random distributed feedback Raman fiber laser (RRFL) with modulation-induced wavelength manipulation and dual-wavelength generation. By using an electrically controlled intra-cavity acoustically-induced fiber grating (AIFG), the input modal content at the signal wavelength can be adjusted. The power output exceeds 47W with good stability and repeatability. It is the first dual-wavelength fiber laser based on mode modulation and has the highest output power ever reported for an all-fiberized continuous wave dual-wavelength fiber laser.
Article
Engineering, Electrical & Electronic
Hai-Yue Pang, Jia-Teng Zheng, Zhao-Yun Li, Huan Liu, Zhi-Yong Tao, Ya-Xian Fan
Summary: This paper presents a dual wavelength erbium-doped random fiber laser based on a micro air cavity. The laser exhibits a low threshold of about 15 mW and a high optical signal to noise ratio of over 40 dB. By adjusting the length of the air cavity, a stable dual wavelength output with a controllable separation from 2.5 nm to 20.2 nm is achieved. The measured fluctuation in lasing wavelengths and output powers are both very small, indicating a highly stable performance. This laser is expected to fulfill the increasing demands of applications such as optical communication, lidars, and fiber sensing.
OPTICAL FIBER TECHNOLOGY
(2023)
Article
Optics
Nelidya Md Yusoff, Lau Kuen Yao, Abdul Hadi Sulaiman, Norita Mohd Yusoff, Mohd Adzir Mahdi
Summary: A stable dual-wavelength erbium-doped fiber laser was proposed and demonstrated, with enhanced stability and high side-mode suppression ratios achieved. The incorporation of polarization maintaining erbium-doped fiber and nonlinear polarization rotation effectively suppressed mode competition in the gain medium. The findings offer insights for designing an enhanced seed laser source for remote dual-wavelength fiber laser applications.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Chemistry, Applied
Jiaxing Gao, Xiaodong Shi, Yafei Luo, Zelan Zhang, Yueteng Wang, Li Liang, Gang He, Wei Liu, Dianyong Tang, Jianping Hu
Summary: In this study, DFT and TD-DFT were used to investigate the photophysical properties of tetradentate Pt(II) complexes with 10- and 11-cyclic chelate ligands. It was found that the cyclization of ligands significantly influenced the emission wavelengths of the complexes. The 10-cyclic chelate ligand complex exhibited higher radiation rate constant and non-radiative rate compared to the 11-cyclic chelate ligand complex, as well as better color purity due to its smaller Huang-Rhys factor.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Marcin Franczyk, Dariusz Pysz, Ryszard Stepien, Jaroslaw Cimek, Rafal Kasztelanic, Fang Lin Chen, Mariusz Klimczak, Luming Zhao, Ivan Kasik, Pavel Peterka, Ryszard Buczynski
Summary: We present the experimental verification of a new type of active nanostructured fiber that can emit laser at two wavelengths simultaneously. The fiber core is made of nanorods doped with Yb3+ or co-doped with Yb3+/Er3+ ions, allowing control of relative gain and modal properties. The double-cladding fiber structure enables efficient excitation with a single pump laser, and a high-quality beam is generated. The laser operation was successfully demonstrated at output power levels of 0.78 W and 0.42 W at 1040 nm and 1534 nm, respectively.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Tianzhong Li, Jinyong Wang, Tongkai Chen, Swelm Wageh, Ahmed A. Al-Ghamdi, Jiangtian Yu, Zhongjian Xie, Han Zhang
Summary: In this study, a drug formulation based on lactic acid bacteria (LAB) was developed to produce reactive oxygen species (ROS) in tumors and induce host immunity. The LAB were modified with zeolitic imidazolate framework-67 (ZIF-67) and effectively delivered into tumor cells, leading to the generation of ROS upon light exposure. The bacterial hybrid induced tumor shrinkage through photodynamic therapy and stimulated inflammation to attract immune cells for cancer elimination.
SCIENCE CHINA-MATERIALS
(2023)
Article
Optics
Fanglin Chen, Hengwen Lan, Yutian Wang, Mariusz Klimczak, Ryszard Buczynski, Xiahui Tang, Ming Tang, Haiyong Zhu, Luming Zhao
Summary: The phase evolution of soliton and first-order sidebands in a fiber laser was investigated using nonlinear Fourier transform (NFT). The study revealed a transition from dip-type sidebands to peak-type (Kelly) sidebands. The calculated phase relationship between the soliton and sidebands using NFT agreed well with the average soliton theory. These findings suggest that NFT can be an effective tool for analyzing laser pulses.
Article
Engineering, Chemical
Huixing Yang, Wei Li, Yangyang Jiang, Qiuming Wei, Linlin Hou, Zhiliang Wu, Qinyu He, Yinzhen Wang, Dingyuan Tang
Summary: The proper design of photocatalysts is crucial for improving the performance of photocatalytic decomposition of water and degradation of pollutants. In this study, a composite material CdS-DETA@g-C3N5 was synthesized by combining nitrogen-rich carbon nitride with CdS-DETA, which exhibited significantly higher hydrogen evolution rate and OFLX degradation rate compared to other catalysts. The enhancements in performance were attributed to the enhancement of energy band bending, construction of a built-in electric field, and retention of high redox carriers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Manman Ding, Xuanxi Li, Fei Wang, Jun Wang, Deyuan Shen, Dingyuan Tang, Heyuan Zhu
Summary: This paper reports on the single-longitudinal-mode and tunable operation of an Er:Y2O3 ceramic laser at around 2.7 μm using intracavity Fabry-Perot etalons combined with a birefringent filter. The laser is pumped with a high brightness, narrow linewidth diode source at around 980 nm and achieves a linearly polarized output power of over 240 mW at 2717 nm for an absorbed pump power of 5.1 W. The demonstrated wavelength tuning range spans from 2708.6 nm to 2741.2 nm, with output powers of over 220 mW throughout the tuning range.
IEEE PHOTONICS JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Dapeng Huang, Fei Liang, Ruiqi Guo, Dazhi Lu, Jiyang Wang, Haohai Yu, Huaijin Zhang
Summary: In this study, the broadband self-trapped exciton (STE) states are demonstrated for the first time in Mo-vacancy-rich MoSi2N4 films. The modulation effect of STE states on nonlinear optical processes is verified, which opens up new possibilities for the construction of novel devices and practical applications.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Optics
Xiao Hu, Jun Guo, Jun Wang, Jie Ma, Luming Zhao, Seongwoo Yoo, Dingyuan Tang
Summary: This work reports the formation of novel soliton molecules (SMs) in a fiber laser with near-zero group velocity dispersion (ZGVD), involving the binding of bright and dark solitons. These stable bound states are formed due to the incoherent cross-phase modulation of light, resembling multi-atom molecules in chemistry. The research findings offer insights into the dynamics of large SM complexes and may have potential applications in large-capacity transmission and all-optical information storage.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Physics, Multidisciplinary
Yufan Du, Liao Chen, Zihui Lei, Chi Zhang, Luming Zhao, Xinliang Zhang
Summary: By collecting spectra from multiple ports and realizing synchronous real-time observation, we observed the sinusoidal evolution of spectral beating and the intracavitary spectral dynamics of period-doubling bifurcation. Our observations matched well with theoretical predictions and simulations. This work may enable real-time observation of various intracavitary nonlinear dynamics in photonic systems.
COMMUNICATIONS PHYSICS
(2023)
Article
Optics
Chenghao Liu, Mariusz Klimczak, Ryszard Buczynski, Xiahui Tang, Ming Tang, Haiyong Zhu, Luming Zhao
Summary: Experimental observation of mode-locked dissipative-soliton-resonance (DSR) pulses, including single-mode DSR pulses and multimode DSR pulses, in a Yb-doped fiber laser is reported. DSR pulses in single-mode state and multi-mode state can exist at the same time and can be output stably. The multi-mode DSR pulses exhibit same linearly broadening characteristics and bell-shaped spectral shape as single-mode DSR pulses. The results would be beneficial for expanding the knowledge of nonlinear dynamics to multimode fiber lasers and provide new insights for DSR pulse output with a fully multimode structure to get larger pulse energy.
OPTICS COMMUNICATIONS
(2023)
Article
Optics
Hengwen Lan, Fanglin Chen, Yutian Wang, Mariusz Klimczak, Ryszard Buczynski, Xiahui Tang, Ming Tang, Haiyong Zhu, Luming Zhao
Summary: We investigate the polarization dynamics of vector solitons in a fiber laser mode-locked by a saturable absorber. Three types of vector solitons were obtained in the laser: group velocity locked vector solitons, polarization locked vector solitons, and polarization rotation locked vector solitons. The polarization evolution during intracavity propagation is discussed. Numerical simulations suggest that the features of vector solitons in a fiber laser could be similar to those generated in fibers.
Article
Engineering, Electrical & Electronic
Jianxing Pan, Tianye Huang, Zhichao Wu, Yutian Wang, Chaoyu Xu, Jing Zhang, Luming Zhao
Summary: Kerr microresonators are attracting attention for their high integration, compatible fabrication, and low energy consumption; they can generate dissipative solitons called cavity solitons and even form ideal equidistant soliton crystal states.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Optics
Andrey Komarov, Alexander Dmitriev, Konstantin Komarov, Georges Semaan, Luming Zhao, Francois Sanchez
Summary: We numerically studied the formation of color pulses and domains in dual-wavelength fiber lasers in a noise-like regime. Each pulse and domain consists of two noise-radiation square fragments with different carrier frequencies. This noise radiation is caused by the Kerr nonlinearity of the fiber in the laser ring cavity. The spectral and temporal structures of the noise radiation have been determined. The obtained results are important for understanding the nonlinear dynamics of noise-like radiation and for developing methods to control laser regimes.
OPTICS COMMUNICATIONS
(2023)
Article
Optics
Yutian Wang, Chenxi Li, Fanglin Chen, Hengwen Lan, Songnian Fu, Mariusz Klimczak, Ryszard Buczynski, Xiahui Tang, Ming Tang, Luming Zhao
Summary: The study of soliton-based fiber optic communication and signal processing techniques has been hindered by hardware and digital signal processing limitations. However, the recent introduction of nonlinear Fourier transform (NFT) has provided a powerful mathematical framework for analyzing and understanding soliton behavior in optical fibers, leading to new developments in the field.
OPTICS COMMUNICATIONS
(2023)
