A5110318148- Optical Network Technologies
- Advanced Fiber Laser Technologies
- Photonic and Optical Devices
- Advanced Photonic Communication Systems
- Photonic Crystal and Fiber Optics
- Semiconductor Lasers and Optical Devices
- Mechanical and Optical Resonators
- Quantum Information and Cryptography
- Quantum optics and atomic interactions
- Nuclear physics research studies
- Nuclear Physics and Applications
- Nonlinear Optical Materials Studies
- Silicon Nanostructures and Photoluminescence
- Advanced Fiber Optic Sensors
- Psychological Well-being and Life Satisfaction
- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Impact of Light on Environment and Health
- Tissue Engineering and Regenerative Medicine
- CCD and CMOS Imaging Sensors
- Radioactive Decay and Measurement Techniques
- Animal Genetics and Reproduction
- Plant and Fungal Species Descriptions
- Forest, Soil, and Plant Ecology in China
- Advanced Chemical Sensor Technologies
Heilongjiang University of Science and Technology
2025
Harbin University of Science and Technology
2025
Minzu University of China
2025
Fujian University of Technology
2025
Jimei University
2024
Tokushima University
2023
University of Rochester
2002-2019
Institute of Modern Physics
2012-2013
Chinese Academy of Sciences
2012-2013
University of Chinese Academy of Sciences
2013
<a href="http://oe.osa.org/virtual_issue.cfm?vid=36">Focus Serial: Frontiers of Nonlinear Optics</a> Several kinds nonlinear optical effects have been observed in recent years using silicon waveguides, and their device applications are attracting considerable attention. In this review, we provide a unified theoretical platform that not only can be used for understanding the underlying physics but should also guidance toward new useful applications. We begin with description third-order...
The authors present the detailed characterization of wavelength dependence two-photon absorption and Kerr nonlinearity in silicon over a spectral range extending from 1.2to2.4μm. They show that exhibits significant increase its nonlinear figure merit with increasing wavelengths beyond two telecommunication bands. expect their results to provide guidance for photonics into new regimes.
The commonly used Lorentzian form of the Raman response function for studying propagation ultrashort pulses in silica fibers does not properly account shoulder gain spectrum originating from Boson peak. We propose a more accurate this and show that its predictions Raman-induced frequency shift should be better agreement with experiments.
We present a general quantum theory capable of describing photon statistics under the combined effects four-wave mixing and Raman scattering inside optical fibers. Our is vectorial in nature includes all polarization effects. analysis shows that spontaneous degrades pair correlation cases but extent degradation depends on pumping configuration employed. In single-pump configuration, pairs can be created with either parallel or orthogonal to pump. results show improve considerably over broad...
The power-boosted laser transmitted via a fiber tip sinusoidally excites the target trace molecules, generating photothermal (PT) effect. Gaussian-distributed plane wave heats medium adjacent to Fresnel reflection surface. Meanwhile, continuous probe light traverses heating field, and periodic temperature change then modulates phase of light. A multi-beam interferometer formed by aligning surface gold-coated high-reflection possesses high resolution sensitivity, significantly enhancing...
Rapid urbanization has accelerated the transformation of community dynamics, highlighting critical need to understand interplay between subjective perceptions and objective built environments in shaping life satisfaction for sustainable urban development. Existing studies predominantly focus on linear relationships isolated factors, neglecting spatial heterogeneity nonlinear which limits ability address localized challenges. This study addresses these gaps by utilizing multi-scale...
The dispersive properties of silicon-on-insulator (SOI) waveguides are studied by using the effective-index method. Extensive calculations indicate that an SOI waveguide can be designed to have its zero-dispersion wavelength near 1.5 microm with reasonable device dimensions. Numerical simulations show soliton-like pulse propagation is achievable in such a spectral region at approximately 1.55 microm. concept path-averaged solitons used minimize impact linear loss and two-photon absorption.
Effects of zero-dispersion wavelength (ZDWL) fluctuations on dual-pump fiber-optic parametric amplifiers are investigated analytically and numerically. It is found that the signal gain varies considerably from fiber to even though each may have same ZDWL average. Moreover, spectrum becomes highly nonuniform for a given because such dispersion fluctuations. Numerical simulations show this problem can be solved large extent by reducing separation between two pumps, but only at expense reduced...
Record performance from a two-pump parametric amplifier constructed with highly nonlinear fibre is reported. Equalised continuous-wave gain of 40 dB was achieved over 33.8 nm without any gain-flattening elements. Maximal difference between signal and idler powers measured to be 1 within the equalised band.
We propose to use four-wave mixing inside silicon waveguides for generating quantum-correlated photon pairs in a single spatial mode. Such silicon-based sources not only exhibit high pair correlation but also have spectral brightness. As the proposed scheme is based on mature technology, it has potential of becoming cost-effective platform on-chip quantum information processing applications.
We propose a novel scheme for continuous-wave pumped optical parametric oscillation (OPO) inside silicon micro-resonators. The proposed not only requires relative low lasing threshold, but also exhibits extremely broad tunability extending from the telecom band to mid infrared.
The authors characterize experimentally the anisotropy of two-photon absorption and Kerr nonlinearity in silicon over a broad spectral region near infrared using z-scan technique. results show that both these parameters decrease by about 12% along [0 1 0] direction compared with [011¯] direction, this change occurs for wavelengths range 1.2–2.4μm.
A two-pump parametric architecture is used to demonstrate all-optical packet and bit-level switching at OC-768 data rates. We show that a switched signal can be simultaneously replicated in four bands with arbitrary conjugate states. The conversion efficiencies extinction ratios are controlled by simple pump-spectral positioning. use of subrate pump analyzed demonstrated using 40-Gb/s sequences.
We investigate the vectorial nature of soliton fission in an isotropic nonlinear medium both theoretically and experimentally. As a specific example, we show that supercontinuum generation tapered fiber is extremely sensitive to input state polarization. Multiple vector solitons generated through exhibit different states elliptical polarization while emitting nonsolitonic radiation with complicated features. Experiments performed agree our theoretical description.
We present a theory to quantify fundamental limit on correlated photon pairs generated through four-wave mixing inside optical fibers in the presence of spontaneous Raman scattering (SpRS). Our is able explain current experimental data. show that if are with polarization orthogonal pump effect SpRS significantly reduced over broad spectral region extending from 5 15 THz.
Effects of polarization-mode dispersion (PMD) on dual-pump parametric amplifiers are investigated numerically using a set four vector equations. It is found that PMD induces large fluctuations in the signal power can affect system performance by enhancing outage probability. The average gain itself reduced more than 10 dB even for relatively small value 0.05 ps//spl radic/km parameter. For larger values parameter, spectrum begins to distort and loses its flatness. We also show polarization...
This paper develops a vector theory of cross-phase modulation (XPM) in optical fibers and use it to investigate the impact polarization-mode dispersion (PMD) on crosstalk induced by XPM wavelength-division multiplexed lightwave systems. Under certain reasonable approximations, permits us obtain an analytic expression for amplitude probe fluctuations copropagating pump channel through XPM. We this calculate average level XPM-induced together with its variance several maps. show that PMD not...
We develop an analytic model for finding the statistics of polarization-dependent gain (PDG) in fiber-based Raman amplifiers. use it to find form probability distribution PDG and study how mean variance fluctuations depend on PMD parameter. show that as well are reduced by approximately a factor 30 case backward pumping.
We propose a novel scheme for designing fiber-optic parametric amplifiers whose operation does not depend on the input signal polarization. In our scheme, four-wave mixing takes place inside birefringent fiber pumped at 45deg from principal axis. show numerically that output power varies by <0.1 dB arbitrary states of polarization under practical conditions
The $\ensuremath{\beta}$ decay of ${}^{53,54}$Ni, ${}^{52,53}$Co, ${}^{51}$Fe, and ${}^{50}$Mn was investigated via the fragmentation a ${}^{58}$Ni primary beam with an energy 68.6 MeV/u. proton-$\ensuremath{\gamma}$ coincidences ${}^{53}$Ni $\ensuremath{\beta}$-delayed proton emission were observed. Based on analysis coincidence events, it inferred that previous assignment excitation for isobaric analog state in ${}^{53}$Co may be problematic. half-lives these nuclei obtained, which...
We present a vector theory of Raman amplification and use it to discuss the effect polarization-mode dispersion (PMD) on gain process inside optical fiber used for stimulated scattering. show that PMD induces large fluctuations in amplified signal reduces average value amplifier gain. In case forward pumping, are expected be more than 15% under typical operating conditions can exceed 50% with relatively low parameter. The effects much less severe backward pumping. Signal reduce 1% this when...