Article
Chemistry, Multidisciplinary
Lina Zhao, Ye Yuan, Luyang Tong, Wenyu Zhang, Zhongshuai Zhang, Tingyin Ning, Yangjian Cai, Yuanmei Gao
Summary: A stable, passively Q-switched Yb:CaGdAlO4 laser based on Mo:BiVO4 saturable absorber was demonstrated in this research. The experimental results showed that Mo:BiVO4-SA is a great candidate for passively Q-switched lasers in the near infrared region. The structure and morphology of the nanoparticles were closely observed using transmission electron microscope, Raman spectrum and linear absorption.
Article
Physics, Applied
Shang Gao, Wei Wang
Summary: In this study, few-layered MoSe2 nanosheets were fabricated using the ultrasonic-assisted liquid phase exfoliation method, with typical characterizations confirming their nonlinear absorption properties. A passively Q-switched Nd:YVO4 laser emitting 1 micron wavelength was successfully demonstrated with the MoSe2 saturable absorber, generating stable pulses with a maximum output power of 215 mW and a shortest pulse width of 192 ns. The experimental data provides a solid foundation for the photonics applications of MoSe2 nanomaterials.
MODERN PHYSICS LETTERS B
(2021)
Article
Optics
Dalin Sun, Xintong Xu, Jiaqi Chen, Wentao Shi, Lang Sun, Shaowen Chu, Shuangchen Ruan
Summary: Researchers successfully utilized single-walled carbon nanotubes as a saturable absorber to achieve an all-fiber passively Q-switched ytterbium-doped fiber laser. By doping Zn2+ metal cations, the filling density and quality of the single-walled carbon nanotubes were improved. A stable Q-switched pulse train was successfully obtained at a wavelength of 1039.4 nm with a repetition rate of 54.28 kHz.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Ping Hu, Jiajia Mao, Hongkun Nie, Ruihua Wang, Baitao Zhang, Tao Li, Jingliang He, Kejian Yang
Summary: A saturable absorber (SA) based on niobium diselenide (NbSe2) was fabricated using optically driven deposition method, showing excellent nonlinear optical properties and successfully applied in a stable passively Q-switched erbium-doped all-fiber laser, achieving the shortest pulse duration and highest pulse energy ever reported for an NbSe2 SA in a Q-switched fiber laser.
Article
Optics
Hong Hong, Qiudi Chen, Yuhao Wang, Peixiong Zhang, Zhen Li, Zhenqiang Chen
Summary: This study successfully prepared a two-dimensional In2O3 molecular crystal for the first time and utilized it as a saturable absorber to achieve passive Q-switching on an Nd/Gd:YAlO3 solid-state laser. The research indicates the potential applications of In2O3-SA in the spectral region around 1 micrometer and may accelerate the development of two-dimensional materials in the field of ultra-fast photonics.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Instruments & Instrumentation
Hongling Chen, Mao Zhou, Peixiong Zhang, Hao Yin, Siqi Zhu, Zhen Li, Zhenqiang Chen
Summary: In this work, few-layer bismuthene nanosheets were used to fabricate a two-dimensional saturable absorber (SA) for the first time. The synthesized bismuthene nanosheets SA showed great potential for pulse laser generation in the near-infrared region.
INFRARED PHYSICS & TECHNOLOGY
(2022)
Article
Optics
Zhe Kang, Mingyi Liu, Zhixu Jia, Weiping Qin, Guanshi Qin
Summary: In this study, Cu1.8S nanocrystals were used as a saturable absorber to achieve a Q-switched fiber laser at a wavelength of 1 μm. The laser cavity was pumped by a 980 nm laser diode, and stable passive Q-switching at 1038 nm was obtained with a threshold pump power of 63 mW. By increasing the pump power, the repetition rate of the Q-switched laser increased from 25.7 kHz to 54.5 kHz, while the pulse duration decreased from 6.7 μs to 2.33 μs. The results demonstrated that Cu1.8S nanocrystals are effective for constructing pulsed lasers with a broadband operating wavelength.
LASER PHYSICS LETTERS
(2023)
Article
Instruments & Instrumentation
Xihu Wang, Jinyu Hu, Xuyang Wang, Jinlong Xu, Zhenyu You, Chaoyang Tu, Yijian Sun
Summary: A type of uniform Bi2Te3 nanowires were synthesized by a simple hydrothermal method and used as saturable absorber in a 2 μm mid-infrared solid state laser for the first time. Dual-wavelength passively Q-switched laser operation at 1945 nm and 1979.2 nm was achieved through careful adjustment. The Bi2Te3 nanowires exhibited better modulation capability compared to other popular saturable absorbers, indicating their potential as promising nanomaterials for mid-infrared solid state pulse lasers.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Article
Optics
Ahmed Shakir Al-Hiti, Ahmed H. H. Al-Masoodi, Wei Ru Wong, M. Yasin, Ab H. H. Al-Masoodi, S. W. Harun
Summary: A new type of organic material based on turmeric was successfully applied as the saturable absorber (SA) in a passively Q-switched Erbium-doped fiber laser (EDFL), achieving good performance in generating Q-switched pulses at 1566.96 nm.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
H. Ahmad, M. F. M. Azri, S. N. Aidit, N. Yusoff, A. K. Zamzuri, M. Z. Samion, S. Wang, Y. Wang, J. K. Sahu
Summary: A novel tunable passively Q-switched fiber laser operating at a wavelength of 1.3 μm was demonstrated, utilizing BDF and Nb2C technology, achieving frequency adjustment in the desired wavelength region.
Article
Optics
A. M. M. Nasir, A. A. Latiff, S. A. Anuar, A. R. Muhammad, M. F. A. Rahman
Summary: This study investigates the use of Molybdenum Titanium Aluminum Carbide (Mo2Ti2AlC2) as a reliable saturable absorber (SA) for stable pulse generation at a wavelength of 1563 nm. A Mo2Ti2AlC2-PVA film was created by dispersing Mo2Ti2AlC2 powder with > 200 nm particle size into polyvinyl alcohol (PVA) and drying it to form a film. The Mo2Ti2AlC2-PVA film exhibited a linear absorption coefficient of approximately 1.5 dB at the Q-switched working wavelength. Self-started Q-switching was achieved with pump power ranging from 20 mW to 55 mW, resulting in a pulse width reduction from 21.7 μs to 8.9 μs and an increase in repetition rate from 20.45 kHz to 40.40 kHz. The pulsed laser showed good stability, with a signal-to-noise ratio (SNR) of 61 dB. The highest output power and pulse energies were measured at 1.1 mW and 27.2 nJ, respectively. These findings highlight the potential of Mo2Ti2AlC2 as an alternative passive SA for laser pulsing at the 1.55-micron wavelength.
Article
Optics
Jinhe Yuan, Jiarui Li, Zhengyang Wu, Shuangcheng Li, Jie Han, Linjun Li
Summary: In this paper, MXene V2CTx was used as a saturable absorber for a passively Q-switched laser, achieving nanosecond pulses with high peak power and high repetition rate. The V2CTx-SA was prepared by spin-coating method and its linear and nonlinear absorption characteristics were studied. The results demonstrate the great practicability of V2CTx in laser applications.
CHINESE OPTICS LETTERS
(2023)
Article
Optics
Jinhe Yuan, Jiarui Li, Linjun Li, Jie Han, Yingjie Shen, Yingyi Li, Zhengyang Wu, Shuangcheng Li
Summary: This paper demonstrates the passive generation of Q-switched pulses in a Tm:YAlO3 (Tm:YAP) bulk laser using a MXene Ti(3)C(2)Tx based saturable absorber (SA). The experiment results show that this laser can achieve nanosecond pulse width and narrow linewidth simultaneously.
Article
Engineering, Electrical & Electronic
N. Li, H. Jia, M. Guo, J. Zhang, W. Y. Zhang, Z. X. Guo, M. X. Li, Z. X. Jia, G. S. Qin
Summary: In this study, passively Q-switched fiber lasers operating at wavelengths of 1, 1.5, and 2 μm were demonstrated using FONPs as a broadband saturable absorber. This represents the first use of a single SA based on FONPs for wide-band Q-switching operation of fiber lasers from 1 to 2 μm.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Optics
Guanghua Liu, Ruijun Lan, Penghua Mu, Yingjie Shen, Bin Zhao
Summary: A passively Q-switched Yb3+:LuYLaVO4 laser based on a GaAs saturable absorber is reported in this paper. The saturable absorption property of GaAs was studied and the performance parameters of the laser were measured. The results showed significant improvements in pulse repetition rate, pulse width, single pulse energy, and pulse peak power compared with previous lasers.
OPTICS COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Lihui Pang, Lu Li, Wenjun Liu, Rongqian Wu, Yi Lv
Article
Nanoscience & Nanotechnology
Lihui Pang, Lu Li, Rongfeng Wang, Qiyi Zhao, Wenjun Liu, Rongqian Wu, Yi Lv
Summary: The study successfully utilized VS2 as a nonlinear optical material to fabricate high-performance optical devices and achieve a stable passive mode-locking laser. The laser demonstrated superior performance compared to recent results, showcasing its potential for ultrafast photonics applications and high-performance applications in information science and nonlinear optics.
Article
Optics
Lu Li, Yao Wang, Wei Jin, Qiyi Zhao, Yulong Su
Summary: In this study, a saturable absorber based on indium selenide was prepared using magnetron sputtering deposition technology, which enabled the establishment of a stable two-wavelength Q-switching Er-doped fiber laser with high stability and improved laser performance.
Article
Instruments & Instrumentation
Lu Li, Lihui Pang, Chao Guo, Xinyi Zhou
Summary: This study presents the synthesis and application of MnFe2O4 nanoparticles as a saturable absorber in designing Q-switching laser pulses. The experimental results demonstrate the potential of MnFe2O4 nanoparticles as an efficient SA material and their possible applications in photonics. Compared to recent reported Q-switching EDF lasers with LD materials, this work shows some improvements in pulse duration, repetition rate, and output power.
INFRARED PHYSICS & TECHNOLOGY
(2021)
Article
Optics
Lu Li, Lihui Pang, Rongfeng Wang, Xiaogang Zhang, Zhanqiang Hui, Dongdong Han, Feng Zhao, Wenjun Liu
Summary: The study focuses on the application of NbxRe(1-x)S2 nanosheets in ultrafast photonics. By incorporating the NbxRe(1-x)S2-microfiber saturable absorber into a net positive dispersion Er-doped fiber laser cavity, stable dissipative soliton pulses were generated. The NbxRe(1-x)S2-based mode-locked fiber laser demonstrated superior comprehensive performance compared to previous works based on 2D materials-based saturable absorbers.
LASER & PHOTONICS REVIEWS
(2022)
Article
Optics
Rongfeng Wang, Meng Zhao, Zengli Sun, Xiaogang Zhang, Lu Li, Lihui Pang, Rongqian Wu, Yi Lv
Summary: TTMCs are promising in optoelectronic devices due to their special structure and tunable bandgap properties; MoxTa(1-x)Se2 nanosheets exhibit nonlinear optical properties and have the ability to fabricate saturable absorbers and achieve ultrashort pulse lasers; Experimental results demonstrate that MoxTa(1-x)Se2 nanosheets possess third order optical nonlinearity and significant potential in nonlinear optoelectronic devices.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Optics
Huiran Yang, Xupeng Li, Dongdong Han, Qiyi Zhao, Lu Li, Yi Gong, Feng Zhao
Summary: Tantalum disulfide (TaS2) is a promising material for catalysis and optical switch due to its tunable band gap and strong photoluminescence. In this study, we prepared a TaS2-based saturable absorber that exhibits strong saturable absorption characteristics and successfully realized polarization domain wall solitons and polarization locked vector solitons. Our findings provide valuable insights for the development of ultrafast photonic devices based on TaS2.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Huiran Yang, Xupeng Li, Mengting Qi, Jiawei Cheng, Lu Li
Summary: In this study, passively harmonic mode locking of an erbium-doped fiber laser using a TaSe2 nanosheets saturable absorber (SA) is demonstrated. The harmonic mode-locking operation is achieved by adjusting the polarization controller and power. The results confirm the potential of TaSe2 as an ideal photonic material.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Lihui Pang, Meng Zhao, Qiyi Zhao, Lu Li, Rongfeng Wang, Rongqian Wu, Yi Lv, Wenjun Liu
Summary: Nanotechnology is a promising field for technological development, and GaSb materials show great potential for nonlinear optical device applications. This study calculates the electronic band structures of GaSb and validates its application in dissipative soliton fiber lasers. Experimental results demonstrate that a GaSb thin film deposited on a microfiber can generate dissipative soliton laser pulses with a fundamental frequency of 43.5 MHz, indicating its potential in ultrafast optics.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Multidisciplinary Sciences
Cheng Chen, Lu Li, Wei Liu
Summary: This paper studies the new generalized Radhakrishnan-Kundu-Lakshmanan equations with powers of nonlinearity, which is an important mathematical model in nonlinear optics. By using the complex envelope traveling wave solution, the equations are transformed into nonlinear systems of ordinary differential equations. Under certain constraints, the equations are further simplified into a special nonlinear equation. Novel optical solutions of the equations, including solitary waves, singular solitons, periodic solitons, singular-periodic solitons, and exponential-type solitons, are obtained by solving this nonlinear equation. Numerical simulations are performed to visualize the optical soliton solutions under given parameter values, including 3D graphics of the modulus and the imaginary part. The symmetry or asymmetry of the wave amplitude is analyzed based on the 2D graphics of the modulus changing with n.
Article
Optics
Gonghe Du, Qianwen Yang, Xudong Hu, Shuangxiong Ma, Yani Ren, Yonggang Xu, Zhaoyu Ren, Qiyi Zhao, Lu Li
Summary: The electrostatic potential and optoelectronic characteristics of Janus MoSSe/MX2 (M = Mo, X = S, Se) van der Waals (vdW) heterostructures were studied using strain engineering. Uniaxial strain not only induced direct and indirect band gaps and semiconductor-metal transformation, but also enhanced the electric field at the interface and improved optical adsorption properties in the IR-visible range. This study reveals the photophysical properties of MoSSe/MX2 vdW heterostructures and highlights their potential for optoelectronic devices and photocatalysis applications.
JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS
(2023)
Article
Optics
Lu LI, Jiawei Cheng, Qiyi Zhao, Jinniu Zhang, Huiran Yang, Yaming Zhang, Zhanqiang Hui, Feng Zhao, Wenjun Liu
Summary: This study explores the nonlinear optical characteristics and applications of chromium oxide (Cr2O3) in ultrafast optics. A microfiber decorated with a Cr2O3 film is prepared and its nonlinear optical characteristics are examined. The results show that this device has a modulation depth of 12.52% and a saturation intensity of 0.0176 MW/cm2. Moreover, the Cr2O3-microfiber is successfully applied as a saturable absorber in an Er-doped fiber laser, generating stable Q-switching and mode-locking laser pulses.
Article
Physics, Applied
Qiyi Zhao, Yani Ren, Lu Li, Chuan He, Junling Che, Rongkai Jia, Yonggang Xu, Lipeng Zhu, Xinlong Xu
Summary: This study systematically investigates the elasticity, global band dispersion, and optical dielectric properties of environmentally friendly transition metal trichalcogenides. The results reveal their suitability for flexible optoelectronic devices and demonstrate their in-plane anisotropic characteristics. This research not only enhances our understanding of the photophysical properties of these materials, but also provides a theoretical reference for the invention of high-performance, flexible, and anisotropic optoelectronic devices.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Optics
Huiran Yang, Mengting Qi, Xupeng Li, Ze Xue, Jiawei Cheng, Chenhao Lu, Dongdong Han, Lu Li, Yusheng Zhang, Feng Zhao
Summary: In this study, V2CTx is combined with a fiber to create a bound-state fiber laser, which successfully generates different types of bound states and compound soliton structures. These findings demonstrate the potential of V2CTx as an efficient ultrafast photonics material.
Article
Chemistry, Multidisciplinary
Lu Li, Lihui Pang, Yao Wang, Wenjun Liu
Summary: This study demonstrates the use of WxNb(1-x)Se2 nanosheets as ultrafast photonic devices to generate high power mode-locked and Q-switched pulses in a fiber laser. The results show improvements compared to recent studies, suggesting that 2D TTMDC-based devices could be efficient candidates for ultrafast photonics and nonlinear optical applications.
