The Photonic Lantern
T. A. Birks, I. Gris-Sánchez, S. Yerolatsitis, S. G. Leon-Saval, R. R. Thomson
光子灯笼是通过将几个单模芯体机械地合并成一个多模芯体而制成的。它们在单模和多模系统之间提供低损耗接口，在这些系统中，纤芯和各个模式之间的精确光学映射并不重要。
Photonic lanterns are made by adiabatically merging several single-mode cores into one multimode core. They provide low-loss interfaces between single-mode and multimode systems where the precise optical mapping between cores and individual modes is unimportant.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
继续探索
Photonic Lantern
光子灯允许多模波导到离散数量的单模波导的低损耗变换，反之亦然，因此，使得能够在多模系统中使用单模光子技术。在这篇综述中，我们将讨论光子灯笼的理论和功能，以及该技术的几种不同变体。我们还将更详细地讨论它的一些应用。
A multimode optical receiver for free space optical communications (FSOC) based on a photonic lantern and adaptive optics coherent beam combining (CBC) of the lantern's single-mode outputs is proposed and demonstrated for the first time. The use of optical coherent combining in fiber serves to increase the signal to noise ratio compared to similar receivers based on electrically combined signals, and represents an all-fiber approach to low-order adaptive optics. This optical receiver is demonstrated using a photonic lantern with three outputs, fibre couplers and active phase locking, and furth…
Modal response sensitivity to polarization across photonic lantern architectures
研究不同光子天线架构中模态响应对偏振的敏感性，揭示强耦合结构与模式选择结构的输出差异。
Multiband processing of multimode light: combining 3D photonic lanterns with waveguide Bragg gratings
报道了利用光子灯笼和波导布拉格光栅在三维集成光子芯片上实现多模光窄带光谱滤波的首次演示。利用飞秒直写技术在硼铝硅酸盐玻璃中制造了具有多凹口波导布拉格光栅的光子灯笼（Corning，Eagle 2000）。在具有10.4 mm长光栅的光子灯笼和参考单模波导中测量了高达5 dB的传输骤降。结果证明了光子灯笼中每个光栅的有效和对称性能。这种器件将有利于空分复用通信系统以及天文仪器的单位，以抑制大气中的碲发射从OH线。
Multiplexed Single-Mode Wavelength-to-Time Mapping of Multimode Light
我们证明了基于锥形多芯光纤的光子灯笼提供了一种有效的方式将多模光态耦合到二维阵列的单光子雪崩探测器（SPAD），每个SPAD都有自己的时间-数字转换器（TDC）用于时间相关单光子计数（TCSPC）。利用这种能力，我们证明了多路复用单模波长到时间转换的多模状态的光使用多芯光纤光子灯笼与121单模核心，耦合在一个一对一的方式，以121 SPADS上的32 $\times$ 32像素CMOS SPAD阵列。以这种方式将多模光耦合到SPAD阵列的光子灯笼的应用可以在诸如拉曼光谱、相干激光雷达和量子光学的领域中找到广泛的应用。
We present a new way to mitigate focal-ratio degradation (FRD) when using optical fibers to transport multimode light. Our approach exploits a custom multicore fiber (MCF) with six dissimilar cores that are single mode at ~1550 nm wavelength and minimally coupled over 7 m. We fabricated adiabatic mode-selective photonic lanterns (PLs) at each end of the MCF to create a fiber link with multimode ports, the PLs coupling each spatial mode of the multimode ports to a specific core of the MCF and vice versa. The PL-MCF-PL link exhibits superior FRD behavior compared to a conventional multimode fibe…
Three-Mode Photonic Lanterns: Comprehensive Analysis from Theory to Experiments
本文对比了四种双包层光纤三模光子灯笼的理论与实验，分析了耦合、带宽和插入损耗等关键性能参数，并总结了各自的实验特性。
Wavelength-Dependent Evolution of Full-Field Transfer Matrices in Photonic Lanterns
本文研究了光子天线中传输矩阵的波长依赖性演化，通过实验测量和物理模型揭示了多模段中模式相位积累是主导机制，为设计具有特定频谱响应的光子天线提供了理论框架。
The thin and flexible nature of optical fibres often makes them the ideal technology to view biological processes in-vivo, but current microendoscopic approaches are limited in spatial resolution. Here, we demonstrate a new route to high resolution microendoscopy using a multicore fibre (MCF) with an adiabatic multimode-to-singlemode photonic lantern transition formed at the distal end by tapering. We show that distinct multimode patterns of light can be projected from the output of the lantern by individually exciting the single-mode MCF cores, and that these patterns are highly stable to fib…
Illuminating the lantern: coherent, spectro-polarimetric characterisation of a multimode converter
本研究提出了一种基于数字非轴向全息技术的表征系统，用于测量光子灯笼的电场分布，揭示了多模转换的模式映射特性及色散特性，为天体光子学和光束成型提供了关键数据。
Photonic lanterns allow the decomposition of highly multimodal light into a simplified modal basis such as single-moded and/or few-moded. They are increasingly finding uses in astronomy, optics and telecommunications. Calculating propagation through a photonic lantern using traditional algorithms takes $\sim 1$ hour per simulation on a modern CPU. This paper demonstrates that neural networks can bridge the disparate opto-electronic systems, and when trained can achieve a speed-up of over 5 orders of magnitude. We show that this approach can be used to model photonic lanterns with manufacturing…
Evaluation of a photonic lantern spatial demultiplexer based receiver for optical communication
本研究提出基于模分解的方法量化光子灯笼（PL）自由空间光通信接收机效率，制作七端口PL并验证，发现其低阶模耦合效率优于商用解复用器且尺寸大幅缩小。
In ground-based astronomy, starlight distorted by the atmosphere couples poorly into single-mode waveguides but a correction by adaptive optics, even if only partial, can boost coupling into the few-mode regime allowing the use of photonic lanterns to convert into multiple single-mode beams. Corrected wavefronts result in focal patterns that couple mostly with the circularly symmetric waveguide modes. A mode-selective photonic lantern is hence proposed to convert the multimode light into a subset of the single-mode waveguides of the standard photonic lantern, thereby reducing the required numb…
Polarization-independent deterministic mode localization in a photonic lantern
本文提出了一种全光纤、极化无关的相干模式重组方案，实现多模光子天线中高斯斑点的确定性定位，具有高效率和稳定性，适用于相干光束成形和空间定位应用。
Simultaneous plane illumination and detection in confocal microscopy using a mode-selective photonic lantern
本文提出利用模式选择性光子天线实现共聚焦显微镜的同时平面照明与检测，通过多模式空间分割复用实现多平面高通量成像，同时牺牲部分分辨率和视野。
We report on the development of a compact (volume $\approx$ 100\:cm$^3$), multimode diffraction-limited Raman spectrograph and probe designed to be compact as possible. The spectrograph uses `off the shelf' optics, a custom 3D-printed two-part housing and harnesses a multi-core fibre (MCF) photonic lantern (multimode to few-mode converter), which slices a large 40~\textmu m multimode input into a near-diffraction-limited 6~\textmu m aperture. Our unique design utilises the hexagonal geometry of our MCF, permitting high multimode collection efficiency with near-diffraction-limited performance i…
Mode-Selective Photonic Lanterns with Double-Clad Fibers
本文提出使用双包层光纤设计制作模式选择光子灯笼，通过定制拉制光纤实现对称性破缺以激发高阶模，在保持单模兼容性的同时实现了高模态隔离与低损耗，并提升了组件的坚固性。
Multicore fibre photonic lanterns for precision radial velocity science
现在，利用现有的光子技术，如特种光纤、光子灯笼和超快激光刻写芯片，可以设想更紧凑和成本更低的天文仪器。我们提出了一个多芯光纤（MCF）终止与多模光子灯笼端口的原始设计。它被设计为具有多模光纤的耦合效率、类似于单模光纤的模式稳定性以及在宽波长范围（380 nm至860 nm）内的低损耗的中继光纤。它提供相位和幅度加扰，以实现稳定的近场和远场输出照明模式，而无需考虑输入耦合变化，并提供低模式噪声，以提高高信噪比应用（如精密径向速度（PRV）科学）的光度稳定性。初步结果为511芯MCF，并与目前最先进的八角形光纤。
Seidr update: photonic 'black magic' for high-contrast interferometry using kernel-nulling and photonic lanterns
研究利用Asgard套件中的新干涉光束组合器Seidr，结合混合模式选择性光子灯笼注入模块与内核零化光子芯片后端，用于系外行星等的高对比度研究，介绍其设计成熟度、模拟及神经网络波前估计方案进展。
The PolyOculus technology produces large-area-equivalent telescopes by using fiber optics to link modules of multiple semi-autonomous, small, inexpensive, commercial-off-the-shelf telescopes. Crucially, this scalable design has construction costs which are > 10x lower than equivalent traditional large-area telescopes. We have developed a novel photonic lantern approach for the PolyOculus fiber optic linkages which potentially offers substantial advantages over previously considered free-space optical linkages, including much higher coupling efficiencies. We have carried out the first laborator…
Source Wavefront Generation for a Non-Interferometric Reconfigurable Null Test using a Photonic Lantern
本文提出利用光子天线生成可重构波前，用于非干涉式自由曲面光学表面的零测试，并通过模拟实现高精度相位函数生成。
Experimental and on-sky demonstration of spectrally dispersed wavefront sensing using a photonic lantern
本研究利用8米Subaru望远镜的SCExAO平台，首次在轨演示了基于光子灯笼的光谱色散波前传感器，证明其能提高校正保真度，为未来开发紧凑型统一波前传感光谱仪奠定基础。
Photonic lanterns rely on a close packed arrangement of single mode fibers, which are tapered and fused into one multi-mode core. Topologically optimal circle packing arrangements have been well studied. Using this, we fabricate PLs with 19 and 37 SMFs showing tightly packed, ordered arrangements with packing densities of 95 % and 99 % of theoretically achievable values, with mean adjacent core separations of 1.03 and 1.08 fiber diameters, respectively. We demonstrate that topological circle packing data is a good predictor for optimal PL parameters.
Starlight corrupted by atmospheric turbulence cannot couple efficiently into astronomical instruments based on integrated optics as they require light of high spatial coherence to couple into their single-mode waveguides. Low-order adaptive optics in combination with photonic lanterns offer a practical approach to achieve efficient coupling into multiplexed astrophotonic devices. We investigate, aided by simulations and an experimental testbed, the trade-off between the degrees of freedom of the adaptive optics system and those of the input waveguide of an integrated optic component leading to…
Design, Fabrication, and Free-Space Characterization of a Two-Photon-Polymerized Nano-printed Photonic Lantern
本研究设计、制造并表征了一种针对1050 nm优化的双光子聚合纳米打印光子灯笼，通过仿真优化几何结构，实验验证了其多模到单模转换性能，为高对比度天文仪器提供了紧凑平台。
The photonic lantern (PL) is a tapered waveguide that can efficiently couple light into multiple single-mode optical fibers. Such devices are currently being considered for a number of tasks, including the coupling of telescopes and high-resolution, fiber-fed spectrometers, coherent detection, nulling interferometry, and vortex-fiber nulling (VFN). In conjunction with these use cases, PLs can simultaneously perform low-order focal-plane wavefront sensing. In this work, we provide a mathematical framework for the analysis of the photonic lantern wavefront sensor (PLWFS), deriving linear and hig…
Modal analysis using photonic lanterns coupled to arrays of waveguides
本研究提出一种基于光子灯笼与周期倏逝耦合波导阵列的集成光学组件，可通过功率关系求逆得到多模波导输入模态的复振幅，可用于高功率光纤激光器模态不稳定性的实时测量。
Focal-plane wavefront sensing with photonic lanterns II: numerical characterization and optimization
本研究对3至19端口少模光子灯笼波前传感器开展数值表征，分析光束整形元件、涡旋掩模的影响，得出其线性范围与最大可处理波前误差，并提出提升性能与优化设计的相关策略。
Empirical verification of principal mode orthogonality and relative phase calibration in photonic lanterns
研究光子灯笼主模正交性及相对相位校准，通过数字离轴全息术分析数据集，发现主模更正交，提出量化指标，还模拟额外测量以利用正交性确定主模相对相位。
Laboratory characterization of a multi-photonic lantern optical waveguide using off-axis holography
针对WaveDriver项目中用于波前传感和积分场光谱的多端口光子灯笼，采用数字离轴全息术测量其主模式，并与仿真对比评估制造差异，讨论波前传感性能。
Integrated photonic building blocks for next-generation astronomical instrumentation II: the multimode to single mode transition
在天文观测站利用衍射极限仪器有许多优点，包括占地面积小，机械和热不稳定性低，性能高。为了实现这样的仪器，必须将望远镜捕获的大气可见度受限信号转换为衍射受限信号。这个过程可以通过使用称为光子灯笼的模式重新格式化设备来光子地实现，该光子灯笼执行多模到单模的转换。为了开发一种优化的集成光子灯笼，我们对飞秒激光直写技术制造的器件进行了系统的参数扫描。这些器件被设计为在1.55 μm附近工作。对于F/# $\geq$ 12注入，器件显示出小于5%的（耦合和转变）损失，并且总器件通量（包括底物吸收）高达75- 80%。这种装置在未来的天文学应用中显示出巨大的前景。
Overcoming the low signal-to-noise problem for hybrid mode-selective photonic lantern-based wavefront correction using machine learning
研究混合模式选择光子灯笼波前校正的低信噪比问题，用神经网络将波前传感核心强度映射为估计波前校正并应用于上游变形镜，探索不同神经网络架构评估性能以解决信噪比权衡。
Coherent Imaging with Photonic Lanterns
本研究探讨了光子灯笼（PLs）在单望远镜相干成像中的潜力，通过干涉单模光纤输出并应用相位调制，发现PL在小角尺度成像中对对称性更敏感并能打破相位角简并，且空间滤波为波前误差提供了稳定性，在光子噪声受限和低对比度小角尺度解析方面具有显著优势。
Demonstrating the integration of a photonic lantern with an all-fiber-based nulling interferometer
研究太阳系尺度系外行星和原行星高对比度成像所需仪器，利用光子灯笼的多模到单模转换能力，展示全光纤焦平面零值干涉仪实验室结果，证明其与干涉仪集成的潜力及探测吸积原行星的扩展概念。
Multimode Single-Ring Photonic Molecule
本文提出利用单多模式光学环谐振器构建光子分子，通过传输模式转换器实现任意模式耦合，克服传统限制，为集成光子电路和非厄密安光子学提供新可能。
We show that, in general, any complex weakly nonlinear highly multimode system can reach thermodynamic equilibrium that is characterized by a unique temperature and chemical potential. The conditions leading to either positive or negative temperatures are explicitly obtained in terms of the linear spectrum of the system, the input power, and the corresponding Hamiltonian invariant. Pertinent examples illustrating these results are provided in various scenarios.
Spectral characterization of a 3-port photonic lantern for application to spectroastrometry
本文在SCExAO测试平台上实验表征了3端口光子灯笼的光谱响应，发现其天文测量灵敏度随波长呈正弦变化，并提出利用耦合图构建光谱响应模型以校准波前误差，为光谱天文测量提供支持。
Spectral tuning of multimode three-dimensional photonic crystal cavities for enhanced anti-Stokes Raman scattering
三维（3D）光子晶体（PhCs）中的多模中空微腔被设计用于实现增强的相干反斯托克斯拉曼散射，这要求腔具有三个具有相等间隔的谐振频率的高品质因子（Q）模。3D光子晶体中的空腔比2D平板在设计和调谐方面具有更大的灵活性，因为降低Q值的辐射损耗可以通过3D光子带隙来抑制。我们首先根据微扰理论通过改变腔的材料和几何形状来同时调谐所有的模式频率。多个模式之间的光谱间距根据其模式轮廓的对称性、体积和场分布来调整。通过求解频域中的麦克斯韦方程组，计算了谐振模式的频率和场分布。
Information limits of photonic lantern wavefront sensing: a Fisher- and quantum-Fisher-information framework and its relation to Fourier-filtering sensitivity limits
该研究构建光子 lantern 波前传感的 Fisher 与量子 Fisher 信息框架，推导其灵敏度极限并与其他传感器基准对比，揭示其性能与量子极限的关联及相关灵敏度指标的关系。
Photonic neural networks with spatiotemporal chaos in multimode fibers
本研究提出利用梯度折射率多模光纤内时空混沌的光子神经网络，经模拟与实验验证其可提升多领域分类准确率，为高效可扩展的光学计算架构提供新思路。
We introduce a numerical procedure which permits to drastically accelerate the design of multimode photonic crystal resonators. Specifically, we demonstrate that the optical response of an important class of such nanoscale structures is reproduced accurately by a simple, one-dimensional model, within the entire spectral range of interest. This model can describe a variety of tapered photonic crystal structures. Orders of magnitude faster to solve, our approach can be used to optimize certain properties of the nanoscale cavity. Here we consider the case of a nanobeam cavity, where the confineme…
Experimentally-determined performance limits for joint imaging and wavefront sensing with a photonic lantern
通过实验和仿真，研究了光子灯笼作为波前传感器对光子噪声的灵敏度，并分析了在部分端口用于波前传感时，波前传感与图像重建之间的权衡。
Photonic ferromagnetic-like spontaneous mode-locking phase transition with replica symmetry breaking in multimode Nd:YAG laser
最近关于光子实验中的复本对称性破缺（RSB）现象的报道[1-5]促进了对多模激光器中无序作用的理解，并有助于解决与复杂系统的统计物理学的启发性联系[6-13]。当相同准备的系统副本达到不同的状态时，RSB就会出现，从而产生不同的可观测量[14]。在这里，我们证明了在一个传统的多模Nd：YAG激光器在一个封闭的腔中的自发锁模制度的RSB。其基本机制与非相干振荡模式的无腔随机激光器中的RSB玻璃纤维相位完全不同。在这里，一个特定的非均匀分布的增益发生在每个脉冲，和挫折感，因为一个给定的子集的纵向模式的相干振荡占主导地位，同时抑制其他的诱导。然而，当引入高损耗时，仅观察到复制对称的放大的刺激发射。因此，我们建议RSB跃迁可以用作标准多模激光器中阈值的标识符，正如最近提出并证明的随机激光器[1，2]。
Multimode Nanobeam Photonic Crystal Cavities for Purcell Enhanced Quantum Dot Emission
本文设计并演示了 GaAs 光子晶体纳米梁腔，通过增大量子点与刻蚀侧壁的距离抑制光谱展宽，在几何约束导致的多模传播条件下实现品质因子约 10^3 的共振，为 Purcell 增强单光子发射提供新途径。
Multifrequency and multimode topological waveguides in a Stampfli-triangle photonic crystal with large valley Chern numbers
本研究在Stampfli三角光子晶体中同时实现多频率和多模式量子谷霍尔效应，通过Z形波导验证大谷陈数，并理论提出频率相关多模式分束器，为高容量光传输与集成器件提供新方案。
Modal noise characterisation of a hybrid reformatter
本文报道了一种混合重定格式器的模态噪声特性。该装置由一个多芯光纤光子灯笼和一个超快激光刻写狭缝重定格式器。它的工作波长约为1550 nm，支持92种模式。光子灯笼将多模信号转换为单模信号阵列，从而将多模光纤的高耦合效率与单模光纤的衍射限制性能相结合。本文介绍了实验测量的设备点扩散函数性能在不同的耦合条件下，其吞吐量行为在高光谱分辨率。该器件表现出优异的加扰性能，但其点扩散函数并不完全稳定。当多芯光纤由于制造缺陷而被搅动时，器件输出处的模场直径和模重心位置变化。
Ultra-fast and accurate multimode waveguide design based on dataset-based eigenmode expansion method
本文提出基于数据集的本征模展开法光子仿真框架，实现多模波导超快高精度设计，比传统方法快两到三个数量级，并成功用于硅基多模弯曲结构设计与任意功率分配比优化。
On-sky Demonstration of Subdiffraction-limited Astronomical Measurement Using a Photonic Lantern
本文首次在天空演示了利用光子灯笼馈送光谱仪，通过光谱差分自校准策略，在单望远镜上实现亚衍射极限测量，以50微角秒精度重建Be星Hα发射盘并测量其不对称性。
Multicore fibre technology - the road to multimode photonics
在过去的40年里，光纤在地面和空间仪器中得到了广泛的应用。在大多数应用中，这些光纤与传统光学器件结合使用以传输光。但是光子学提供了一个超越光传输的巨大范围的光学操纵，这在2001年之前很少被利用。更广泛地使用光子学的根本障碍是在多模光纤中实现光子作用的困难。迈向通用解决方案的第一步是光子灯笼的发明（Leon-Saval，Birks & Bland-Hawthorn 2005）和五年后的高效设备（< 1 dB损耗）的交付（Noordegraaf等人2009）。多芯光纤（MCF）与灯笼一起使用，现在正在实现多模光子学的更大飞跃。直到最近，MCF中的单模内核还不够均匀，无法实现电信（SMF-28）性能。现在已经实现了高质量的MCF，我们将注意力转向将复杂功能（例如用于OH抑制的布拉格光栅）打印到其N芯中。我们在这个方向上的第一项工作使用了马赫-曾德尔干涉仪（近场相位掩模），但这种方法仅适用于通过光栅均匀性测量的N=7 MCF（Lindley等人，2014年）。我们现在已经构建了一个Sagnac干涉仪，其景深增加了三倍，足以在N > 127个核心上进行打印。今年，我们用500 mW Sabre FRED激光器实现了第一次发光。这些都是精密复杂的干涉仪。我们报告我们的进展，并总结了我们的第一年的目标，其中包括多模OH抑制光纤的英澳望远镜/PRAXIS仪器和发现频道望远镜/MOHSIS仪器正在…
Fully integrated hybrid multimode-multiwavelength photonic processor with picosecond latency
本文提出首个单片集成的模分-波分混合复用光子处理器，实现5 Gb/s光MIMO信号实时解扰和射频信号抗干扰，处理延迟仅30 ps，并将每秒运算次数较空间复用WDM方案提升4.1倍。
Dynamical radiation pressure effects in cavity optomechanical systems give rise to self-sustained oscillations or `phonon lasing' behavior, producing stable oscillators up to GHz frequencies in nanoscale devices. Like in photonic lasers, phonon lasing normally occurs in a single mechanical mode. We show here that phase-locked, multimode phonon lasing can be established in a multimode optomechanical system through Floquet dynamics induced by a temporally modulated laser drive. We demonstrate this concept in a suitably engineered silicon photonic nanocavity coupled to multiple GHz-frequency mech…
Exciton-Tunable Phase Control and Superstrong Coupling Through Multimode Polariton Engineering in Planar Waveguides
本文研究可见光半导体波导中的多模激子-光子耦合，通过严格耦合波分析和耦合振子模型，展示了从常规多模强耦合到超强耦合的光子带结构工程，并利用激子共振位移实现相位调制和模态切换。
Smooth-Curvature Bend Design Guided by Variational Analysis for Adiabatic Multimode Integrated Photonics
研究多模波导弯曲设计，将其表述为依赖曲率的变分问题，通过构建品质因数推导绝热最优条件，引入SPC和SPCh弯曲，在特定平台上实现低损耗、宽带宽、制造宽容，为光互连和微波光子系统提供新设计策略。
Magnetically Controllable Multimode Interference in Topological Photonic Crystals
本文在支持两个不同色散单向边缘模式的旋磁拓扑光子绝缘体中，实验展示了通过磁场强度或频率调控多模干涉，实现可控功率分配，为高效可重构光子器件发展提供了新途径。
Demonstration of a photonic lantern focal-plane wavefront sensor: measurement of atmospheric wavefront error modes and low wind effect in the non-linear regime
本研究验证了19芯光子灯笼结合神经网络作为焦平面波前传感器的性能，在非线性 regime 下实现了对多种大气波前误差的高精度重构，展现出在自适应光学领域的应用潜力。
An ultrafast single-pixel optical 2D imaging system using a single multimode fiber (MF) is proposed. The MF acted as the all-optical random pattern generator. Light with different wavelengths pass through a single MF will generator all-optical random speckle patterns, which have a low correlation of 0.074 with 0.1nm wavelength step from 1518.0nm to 1567.9nm. The all-optical random speckle patterns are perfect for compressive sensing (CS) imaging with the advantage of low cost in comparison with the conventional expensive pseudorandom binary sequence (PRBS). Besides, with the employment of phot…
Demultiplexing through a multimode fiber using chip-scale diffractive neural networks
本文提出了一种基于三维衍射神经网络的芯片级AI解决方案，实现多模光纤的高速光速解复用，具有高精度和灵活性。
Raman suppression in nanophotonics enabled by multimode spectral filtering
本文提出通过控制多横模耦合与损耗来抑制拉曼散射，利用纳米刻蚀布拉格光栅和渐细波导实现多模耦合与选择性过滤，展示了在铌酸锂中生成两种不同 Kerr 非线性态的应用。
On-chip optical interconnect has been widely accepted as a promising technology to realize future large-scale multiprocessors. Mode-division multiplexing (MDM) provides a new degree of freedom for optical interconnects to dramatically increase the link capacity. Present on-chip multimode devices are based on traditional wave-optics. Although large amount of computation and optimization are adopted to support more modes, mode-independent manipulation is still hard to be achieved due to severe mode dispersion. Here, we propose a universal solution to standardize the design of fundamental multimo…
Neuromorphic photonics has recently emerged as a promising hardware accelerator, with significant potential speed and energy advantages over digital electronics, for machine learning algorithms such as neural networks of various types. Integrated photonic networks are particularly powerful in performing analog computing of matrix-vector multiplication (MVM) as they afford unparalleled speed and bandwidth density for data transmission. Incorporating nonvolatile phase-change materials in integrated photonic devices enables indispensable programming and in-memory computing capabilities for on-chi…
扫码添加微信好友，提出您的宝贵建议 👇
💡 备注请填写：网站反馈
发表机构由 AI 从论文文本抽取，如发现错误，欢迎反馈修正建议。