搜索结果: 1-15 共查到“光学工程 scattering”相关记录42条 . 查询时间(0.098 秒)
光电信息大讲堂第210期：From discovery of random Raman lasing via natural Rayleigh scattering in ultra-long fibers to unique lasing and sensing features of multimode and multicore fibers with fs-inscribed regular and random 3D refractive-index structures
拉曼光纤激光器 输出光束 折射率光纤
2023/4/17
在二极管泵浦的拉曼光纤激光器的多模渐变折射率光纤中，通过飞秒脉冲刻写FBG，可产生接近衍射极限的输出光束。这一技术已经应用于工业（通信、生物医学、材料加工、基础设施和能源行业）中的各种激光和传感器系统。从超长光纤自然瑞利散射引起的随机拉曼激光的发现出发，主讲人将介绍使用fs脉冲刻写具有规则/随机的3D折射率结构的多模、多芯光纤的技术，以及新型光纤所具有的独特激光和传感性能，这种新型光纤有望在物理上...
SAR IMAGE SIMULATION OF SHIP TARGETS BASED ON MULTI-PATH SCATTERING
Ships Synthetic Aperture Radar(SAR) Imaging simulation Multipath scattering Feature Ellipse
2018/5/14
Synthetic Aperture Radar (SAR) plays an important role in the classification and recognition of ship targets because of its all-weather working ability and fine resolution. In SAR images, besides the ...
2017光学相干成像技术和散射介质成像专题会议（2017 Conferences on Optical Coherence Imaging Techniques and Imaging in Scattering Media）
2017 光学相干成像技术和散射介质成像 专题会议
2017/4/25
This conference is a continuation of “Optical Coherence Tomography and Coherence Techniques” and seeks to broaden the scope to cover the general area of imaging in biological scattering media based on...
Distributed Temperature Sensing Using Stimulated-Brillouin-Scattering-Based Slow Light
Distributed temperature sensing stimulated Brillouin scattering slow light
2016/12/2
Distributed temperature sensing has been achieved by spatially resolved measurement of the probe time delay resulted from stimulated-Brillouin-scattering slow light. The temperature of a particular fi...
Analytic Properties of Two-Photon Scattering Matrix in Integrated Quantum Systems Determined by the Cluster Decomposition Principle
Two-Photon Scattering Matrix Integrated Quantum Systems Determined
2015/8/7
Analytic Properties of Two-Photon Scattering Matrix in Integrated Quantum Systems Determined by the Cluster Decomposition Principle.
Temporal coupled-mode theory for light scattering by an arbitrarily shaped object supporting a single resonance
Temporal coupled-mode theory light scattering single resonance
2015/8/7
We develop a temporal coupled-mode theory to describe the interaction of plane wave with an individual scatterer having an arbitrary shape. The theory involves the expansion of the fields on cyl...
Photonic chip based tunable and reconfigurable narrowband microwave photonic filter using stimulated Brillouin scattering
Stimulated scattering modulation Nonlinear optics integrated optics Radio frequency photonics
2015/8/7
We report the first demonstration of a photonic chip based dynamically reconfigurable, widely tunable, narrow pass-band, high Q microwave photonic filter (MPF). We exploit stimulated Brillouin scatter...
Design for broadband on-chip isolator using stimulated Brillouin scattering in dispersion-engineered chalcogenide waveguides
Nonlinear optics Stimulated scattering modulation Nonlinear optics devices
2015/8/7
We propose a scheme for on-chip isolation in chalcogenide(As2S3) rib waveguides, in which Stimulated Brillouin Scattering is used to induce non-reciprocal mode conversion within a multi-moded waveguid...
Complete All-Optical Silica Fiber Isolator via Stimulated Brillouin Scattering
Brillouin scattering electrostriction optical fi bers optical isolators.
2015/8/10
This study demonstrates the theoretical operation of an all-optical silica fiber isolator using stimulated Brillouin scattering. Two pump sources that copropagate through a double-mode fib...
Signal Chirp Design for Suppression of Nonlinear Polarization Scattering in DP-QPSK Transmission
Signal Chirp Design Suppression Nonlinear Polarization Scattering DP-QPSK Transmission
2015/5/21
We analyze chirp techniques for suppression of nonlinear effects in DP-QPSK transmission. Simulations reveal that a significant reduction in nonlinear polarization scattering can be achieved by proper...
Cooperative Light Scattering Effects in Optical Fibers, Lasers, and Amplifiers
Nonlinear optics fibers Lasers fibers
2015/5/20
We overview Rayleigh, Brillouin and Raman scattering in optical fibers, fiber amplifiers and lasers focusing on their mutual cooperation dynamics and explaining associated effects such as multi-cascad...
Complete Mitigation of Brillouin Scattering Effects in Reflective Passive Optical Networks using Triple-Format OFDM Radio Signals
Brillouin Scattering Effect Passive Optical Network Triple-Format OFDM Radio Signals
2015/5/18
Brillouin scattering is identified as a severe limitation in narrow line-width,bi-directional reflective systems. A spectrum management mitigation technique for triple-format OFDM signals is demonstra...
Bragg-Scattering frequency conversion in nonlinear fiber with frequency shifted feedback pumps
Bragg-Scattering requency conversion frequency shifted feedback pumps
2015/5/14
We experimentally study Bragg-type frequency conversion in nonlinear fiber. We use two pumps obtained by amplifying two continuous-wave frequency-shifted feedback lasers. Our experimental results comp...
Modeling of light extraction efficiency of scattering thin film using Mie scattering
organic light emitting diode light outcoupling Mie scattering
2011/5/5
Significant amount of emitted light from an organic light emitting diode (OLED) is trapped as
a result of total internal reflection (TIR) on a glass–air interface. One of the strategies to increase
...
Temporal Coupled-Mode Theory for Fano Resonance in Light Scattering by a Single Obstacle
Temporal Coupled-Mode Theory Fano Resonance Light Scattering Single Obstacle
2015/8/10
We present a theory for Fano interference in light scattering by individual obstacle, based on a temporal coupled-mode formalism. This theory is applicable for obstacles that are much smaller than the...