Article
Optics
Ting Wang, Ji-Liang Wu, Xu-Cheng Zhang, Yang Shi, Yue-De Yang, Jin-Long Xiao, Da-Ming Zhang, Guan-Shi Qin, Yong-Zhen Huang
Summary: In this paper, we demonstrate the generation of octave-spanning optical frequency combs with a repetition rate of tens of GHz for the first time using a four-wave mixing effect seeded by a dual-mode microcavity laser. Wideband optical frequency combs are generated using a Brillouin nonlinear fiber loop and shaped through optical filtering. The high-repetition-rate pulse train is amplified and compensated for dispersion, resulting in an octave optical comb spanning from 1100 to 2200 nm. We achieve frequency combs with octave bandwidths and repetition rates using dual-mode microcavity lasers.
PHOTONICS RESEARCH
(2022)
Article
Mathematics, Interdisciplinary Applications
Petr A. Blinov, Tatiana V. Gani, Alexander A. Malnev, Vakhid A. Gani, Vladimir B. Sherstyukov
Summary: In this study, we investigate a family of field-theoretic models involving a real scalar field in (1+1)-dimensional space-time. The dynamics of the field in each model is determined by a polynomial potential with two degenerate minima. We derive exact general formulas for kink solutions exhibiting power-law asymptotic behavior. Additionally, we provide formulas for the asymptotics of all discovered kinks and analyze other properties such as stability potentials, zero modes, and positions of the centers of mass for the obtained kinks.
CHAOS SOLITONS & FRACTALS
(2022)
Article
Engineering, Electrical & Electronic
Yuanfang Zhao, Zhaonian Jia, Maolin Dai, Caiyue Zhao, Manthangal Sivanesan Aruna Gandhi, Shuqing Sun, Qian Li, H. Y. Fu
Summary: The paper proposes and experimentally demonstrates a refractive index sensor using a fiber non-adiabatic taper and a fiber Sagnac loop. Experimental results show that the refractive index sensitivity of the sensor can be adjusted by cascading the two interferometers, highlighting a low-cost and easy fabrication method for changing sensitivity.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Optics
Xue Qi, Ramona Scheibinger, Johannes Nold, Saher Junaid, Mario Chemnitz, Markus A. A. Schmidt
Summary: The liquid-core fibers (LCFs) with longitudinally controlled dispersion offer a versatile platform for ultrafast, nonlinear frequency conversion. The dispersion control is achieved by modulating the liquid core diameter, resulting in the formation of multiple dispersive waves and smooth output spectra. The LCFs reveal unexplored nonlinear dynamics and generate tailored broadband spectra.
Article
Mathematics
Noha M. Rasheed, Mohammed O. Al-Amr, Emad A. Az-Zo'bi, Mohammad A. Tashtoush, Lanre Akinyemi
Summary: This paper presents exact one-soliton solutions for a generalized case of the higher-order NLSE with non-Kerr nonlinearity using software symbolic computations. The modified Kudryashov simple equation method is employed under certain parametric constraints, demonstrating the effectiveness and reliability of the considered scheme. Additionally, graphical illustrations of some obtained solitons are provided.
Article
Optics
Tao Pu, Kan Tian, Bo Hu, Zhongjun Wan, Linzhen He, Xuemei Yang, Han Wu, Yang Li, Weizhe Wang, Houkun Liang
Summary: Nonlinear compression is an important technique for generating ultrafast pulses with high peak power and narrow pulse widths. This study reports a simple and stable nonlinear pulse compression technique, which achieves high efficiency through cascaded filamentation and dispersion compensation. The technique successfully compresses pulse widths from 160 fs to 32 fs, with only 2.4% energy loss.
HIGH POWER LASER SCIENCE AND ENGINEERING
(2023)
Article
Mathematics, Applied
Aly R. Seadawy, Syed T. R. Rizvi, Urooj Akram, S. Kamran Naqvi
Summary: This article studies the propagation of the short pulse optical model governed by higher order nonlinear Schrodinger equation, and obtains various optical soliton solutions. The research findings are important for understanding the propagation behavior of ultrashort photons in nonlinear media.
JOURNAL OF GEOMETRY AND PHYSICS
(2022)
Article
Physics, Applied
Chen Chen, Guojun Gao, Ying Wang, Yuqi Pan, Shuyu Zhou
Summary: This study investigated one-dimensional and two-dimensional quantum systems with higher-order dispersions and higher-order nonlinear interactions, deriving analytical dark soliton solutions using the high-order nonlinear Schrodinger equation and F-expansion method. The results can guide the detection and experimental study of dark solitons in two-dimensional quantum systems with high-order dispersion and nonlinear interactions.
MODERN PHYSICS LETTERS B
(2021)
Article
Mathematics, Interdisciplinary Applications
Ru-Ru Wang, Wen-Bo Bo, Hao-Bin Han, Chao-Qing Dai, Yue-Yue Wang
Summary: In this study, the transport dynamics of vector solitons in ytterbium-doped fiber lasers were numerically investigated using a coupled Ginzburg-Landau equation with higher-order effects. It was found that the number of soliton molecules can be manipulated by adjusting the small signal gain coefficient and intracavity birefringence, leading to the realization of synchronous and asynchronous vector soliton transmission and the generation of chaotic pulse sequences. The proposed model has universal application value and the numerical results provide guidance for studying polarization tunable lasers and exploring the nonlinear mechanism in fiber lasers.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Optics
Sharbari Deb, Ardhendu Saha, Asim Asrar
Summary: The study introduces a novel method for compressing ultrashort optical pulses, mimicking a third-order nonlinear process through an electro-optically controllable cascaded second-order optical process, resulting in significant compression of pulses. Experimental results show that this method can compress femtosecond pulses to 47 fs within a few cycles, with peak intensity increasing from 50 to 288 GW/cm(2).
APPLIED PHYSICS B-LASERS AND OPTICS
(2021)
Article
Optics
Weitao He, Ruihuan Wu, Weiyi Hong, Aiping Luo
Summary: The study investigates the influences of high-order modes on energy flow, revealing that their random distribution evolves to a stationary state over time. The HOMs-attractor acts as a valve in the energy flow.
Article
Optics
Runzhi Chen, Zhuo Shi, Guoqing Chang
Summary: Pre-chirp-managed adiabatic soliton compression (ASC) in gas-filled pressure-gradient hollow-core fibers is proposed to suppress detrimental pedestals and improve compressed pulse quality. Experimental results show that this method is effective for compressing pulses centered at longer wavelengths, producing high-quality, energetic few-cycle pulses.
Article
Optics
Chenxi Zhang, Xiaohui Li, Enci Chen, Haoran Liu, Perry Ping Shum, Xiao-han Chen
Summary: This study focuses on dissipative soliton pulses generated by a nonlinear photonics absorption device based on hydrazone organics, compressing the pulses to near the transformation limit through dispersion control. Experimental results demonstrate that the transport properties of dissipative solitons are different from traditional optical pulses, and additional anomalous dispersion fibers can produce dissipative noise-like soliton pulses.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Mathematics, Applied
Xinxin Ma
Summary: Based on the matrix Riemann-Hilbert approach, the inverse scattering transform for the higher-order Chen-Lee-Liu equation with zero boundary condition is systematically investigated. The N-soliton solution is derived by eliminating the unfavorable integral term and the dynamics and interactions of the high-order poles solitons are displayed and analyzed.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2022)
Article
Engineering, Mechanical
Muwei Liu, Haotian Wang, Hujiang Yang, Wenjun Liu
Summary: This paper investigates a coupled higher-order variable-coefficient nonlinear Schrodinger equation, which has potential applications in optical fiber communications. The author presents a modified Kudryashov method to obtain soliton solutions for the fractional variable-coefficient equations. The interaction of solitons is studied through dynamical analysis, providing insights into the relationship between the dynamical structure of solitons and parameters in the fractional nonlinear optical system. The results of this paper contribute to the study of fractional nonlinear optical systems and provide theoretical guidance for optical communication in inhomogeneous optical fibers.
NONLINEAR DYNAMICS
(2023)
Article
Engineering, Electrical & Electronic
Gai Zhou, Tao Gui, Chao Lu, Alan Pak Tao Lau, Ping-Kong Alexander Wai
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2020)
Article
Optics
Dongmei Huang, Feng Li, Chao Shang, Zihao Cheng, P. K. A. Wai
PHOTONICS RESEARCH
(2020)
Article
Engineering, Electrical & Electronic
Jiayao Huang, Qian Li, Ziyun Jian, P. K. Alex Wai, Kaliyaperumal Nakkeeran
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2020)
Article
Optics
Dongmei Huang, Feng Li, Zijian He, Zihao Cheng, Chao Shang, P. K. A. Wai
Article
Engineering, Electrical & Electronic
Dongmei Huang, Feng Li, Zihao Cheng, Xinhuan Feng, P. K. A. Wai
Summary: The article introduces a novel discrete FDML laser with intracavity optical intensity modulation, which can generate swept signals with comb lines uniformly distributed in the frequency domain and achieve generating discrete k-space uniform swept signals with different FSRs and pulse durations.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Kangzhu Zhou, Qian Li, Zhe Kang, Jiayao Huang, P. K. A. Wai
Summary: A novel on-chip cascaded structure utilizing a microresonator and a slot waveguide for dual pump supercontinuum generation is proposed. By employing a low-power single continuous wave pump, dissipative Kerr soliton is successfully generated and serves as a dual pump seed for supercontinuum generation in the following slot waveguide. Numerical simulations have demonstrated the generation of 1.56 octave-spanning supercontinuum within the wavelength range of 1 to 3 μm.
RESULTS IN PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Zhe Kang, Kun Zhu, Xianting Zhang, Shaokang Wang, Feng Li, Jinhui Yuan, P. K. A. Wai, Sailing He
Summary: A single dissipative Kerr soliton (DKS) formed in a microresonator exhibits unique characteristics, allowing for the generation of few-cycle femtosecond pulses and smooth, phase-coherent comb spectra, leading to revolutionary breakthroughs in various fields. By applying a train of energetic pulses to an external continuous-wave driving pump, the cavity can deterministically evolve into a single DKS state without the need to scan the pump or cavity resonance frequencies. This method also allows for the manipulation of multi-DKS and perfect soliton crystals generation, and has the potential for ultrahigh speed all-optical clock recovery.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Optics
Yanxian Wei, Hailong Zhou, Dongmei Huang, Feng Li, Jianji Dong, Xinliang Zhang, P. K. A. Wai
Summary: This article discusses how loss can induce modal gain in non-Hermitian systems, and observes this phenomenon experimentally. By utilizing polarization-dependent loss in a single laser cavity, a new method for manipulating active cavity lasing is demonstrated.
Article
Engineering, Electrical & Electronic
Feng Li, Dongmei Huang, K. Nakkeeran, J. Nathan Kutz, Jinhui Yuan, P. K. A. Wai
Summary: This paper investigates the Eckhaus instability in laser cavities with harmonically swept filters, showing that it is triggered by the cavity dispersion-induced continuous frequency shift. The repeated triggering of the Eckhaus instability is the dominant effect that leads to high frequency fluctuations in FDML laser output, limiting signal quality.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Yujia Li, Dongmei Huang, Hongjie Chen, Feng Li, P. K. A. Wai
Summary: This study investigates the statistical properties of phase noise in a swept source-based coherent detection system (CDS) using a Fourier domain mode locked (FDML) laser, both theoretically and experimentally. The study finds that the probability density function (PDF) of the measured residual phase jitter (RPJ) is close to the Gaussian distribution, and the variance of the RPJ increases quadratically with the optical path difference of the CDS. Numerical simulations using stationary white noise confirm these findings, and the experimental results align well with the simulations. Overall, this study provides insights into the noise property of FDML laser-based CDS and evaluates the temporal coherence of swept lasers.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
Hongjie Chen, Yujia Li, Dongmei Huang, Feng Li, Chao Lu, P. K. A. Wai
Summary: A novel all-fiber Er-doped mode-locked laser with broad spectrum is demonstrated using nonlinear polarization rotation, leading to potential applications in time-stretch optical coherence tomography. The laser has a high repetition rate and pulse width, making it a promising source for frequency metrology and high resolution optical coherence tomography.
Article
Optics
Yang Yang, Yin Xu, Dongmei Huang, Feng Li, Yue Dong, Bo Zhang, Yi Ni, P. K. A. Wai
Summary: This study proposes an on-chip acousto-optic modulation (AOM) scheme based on the thin-film lithium niobate platform, operating at the higher-order TE1 mode. Through the enhanced acousto-optic interaction, the refractive index change of the optical waveguide is utilized to modulate the output spectrum of the device. Efficient mode conversion between TE0 and TE1 modes is required for the proposed AOM scheme. The results demonstrate lower loss and a lower voltage-length product compared to previous reports on AOM and electro-optic modulation (EOM) at the fundamental TE0 mode.
Article
Engineering, Electrical & Electronic
Dongmei Huang, Feng Li, Hongjie Chen, Yujia Li, Zihao Cheng, P. K. A. Wai
Summary: In this paper, a discrete Fourier domain mode locked (FDML) laser is proposed and demonstrated, which can simultaneously generate multiple combinations of comb lines using temporal modulation. It has various applications including dual modal swept source OCT and interleaved line scanning in swept source LiDAR.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Review
Chemistry, Analytical
Dongmei Huang, Yihuan Shi, Feng Li, P. K. A. Wai
Summary: This review discusses the theoretical models and experimental techniques of Fourier domain mode-locked (FDML) lasers, and explores their applications in various fields.
Proceedings Paper
Engineering, Electrical & Electronic
Jiayao Huang, Feng Ye, K. Nakkeeran, P. K. A. Wai, Qian Li
Summary: The study reports the numerical simulation of merging five raised-cosine pulses with spectral separation of 0.1 nm into a single compressed pulse with a compression factor of approximately 12.8 in a dispersion-decreasing nonlinear fiber, which accounts for almost 50% of the total input energy.
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2021)
