Versatile parallel signal processing with a scalable silicon photonic chip

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 2, 2025

Silicon photonic signal processors promise a new generation of processing hardware with significant advancements in bandwidth, low power consumption, and minimal latency. Programmable silicon processors, facilitated by tuning elements, can reduce development cycles costs. However, traditional programmable based on optical switches face scalability performance challenges due to control complexity transmission losses. Here, we propose scalable parallel processor for versatile applications interleaving wavelength temporal dimensions. Additionally, it incorporates ultra-low-loss waveguides low-phase-error switch techniques, achieving an overall insertion loss 10 dB. This design offers loss, high scalability, simplified control, enabling advanced functionalities such as accurate microwave reception, narrowband filtering, wide-bandwidth arbitrary waveform generation, high-speed computing without the need elements calibration. Our demonstrates advantages both scale performance, marking advancement large-scale, high-performance, multifunctional systems. work presents leveraging With switches, be programmed enable functions, showcasing great

Language: Английский

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Large-scale photonic inverse design: computational challenges and breakthroughs

Nanophotonics, Journal Year: 2024, Volume and Issue: 13(20), P. 3765 - 3792

Published: June 6, 2024

Abstract Recent advancements in inverse design approaches, exemplified by their large-scale optimization of all geometrical degrees freedom, have provided a significant paradigm shift photonic design. However, these innovative strategies still require full-wave Maxwell solutions to compute the gradients concerning desired figure merit, imposing, prohibitive computational demands on conventional computing platforms. This review analyzes challenges associated with structures. It delves into adequacy various electromagnetic solvers for designs, from neural network-based solvers, and discusses suitability limitations. Furthermore, this evaluates research techniques, advantages disadvantages applications, sheds light cutting-edge studies that combine networks applications. Through comprehensive examination, aims provide insights navigating landscape advocate strategic methods, solver selection, integration overcome barriers, thereby guiding future

Language: Английский

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Ultra-compact on-chip optical quantum circuit based on structured Si quantum logic gates

Chinese Journal of Physics, Journal Year: 2025, Volume and Issue: 95, P. 742 - 751

Published: April 11, 2025

Language: Английский

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Programmable nano-optics and photonics

Nanophotonics, Journal Year: 2024, Volume and Issue: 13(12), P. 2047 - 2049

Published: May 2, 2024

This special issue of Nanophotonics, titled "Programmable Nano-optics and Photonics," highlights cutting-edge advancements in the field that represents a paradigm shift from traditional optical systems with fixed-functionality to dynamically tunable systems.This transformation is marked by enhanced performance ability actively manipulate light propagation, processing, interaction matter unprecedented ways.This gathers contributions leading experts worldwide, featuring groundbreaking research perspectives span theoretical frameworks advanced applications, illustrating potential programmable nano-optics photonics on both free-space integrated platforms.In this Editorial, we spotlight key illustrate breadth depth rapidly evolving field.A comprehensive review recent progress towards large-scale silicon for signal processing provided Xie et al. [1].These high-performance photonic circuits are crucial applications including microwave photonics, communications, computing, quantum reflecting their critical role future systems.Sreekanth furnish an in-depth development Fano resonant coatings using phase change materials.The article further dynamic structural coloring as well spectrum splitting improving photovoltaic efficiency solar cells [2].Ullah discuss chalcogenide-based nonvolatile memories layered polymorphs, which offers alternative conventional memory technologies computing [3].Chen outline how chalcogenide phase-change materials can advance terahertz metamaterials, focusing integration into 6G communication [4].Theoretical limits multifunctional nanophotonic responses explored Shim al.The study establishes general framework optimizing device various design scenarios [5]. Lee spatio-spectral control within coherent nanophotonics, demonstrate reconfigurable multi-spectral modulator operating single element [6].A method aligning liquid crystals nanoantennas highperformance metasurfaces presented Veetil al., promising functionality diverse virtual reality [7].Xiao introduce topological metasurface capable real-time modulation spatial surface waves.The demonstration shows versatile wave manipulation capabilities such utilizations smart sensing wireless communications [8].Wang propose flip-metasurface controls reflection while maintaining undistorted transmission over broad spectral band, opening new avenues stealth technology [9].High-resolution non-line-of-sight imaging based crystal planar elements showcased Zhao wide scanning area high-quality image reconstruction.Such approach could transform security monitoring autonomous driving [10].Yang present concept ultrafast Q-boosting semiconductor metasurfaces.The proposed provide complete resonance bandwidth boost frequency conversion trapping [11].

Language: Английский

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A High-Speed Silicon-Photonics WDM Switch for Optical Networks Applications

Photonics, Journal Year: 2024, Volume and Issue: 11(12), P. 1115 - 1115

Published: Nov. 25, 2024

This article introduces the design of a novel high-speed silicon-photonics hitless switch that adheres to wavelength-division multiplexing (WDM) standards for channel 3 dB bandwidth, free spectral range, crosstalk, shape factor, and dispersion. The combines advantages two structures, compound ring resonator structure, Mach–Zehnder interferometer (MZI) modulator. mathematical treatment proposed device is detailed, designs are presented. For five resonators, through (drop) bandwidth 60 GHz (38 GHz), crosstalk −24 (−24 dB), dispersion 22 ps/nm (21 ps/nm), factor 0.66 (0.5), insertion loss 0.3 (1.7 dB). nine 59 −37 28.5 (29 0.8 (0.73), (2.3 five-ring design, switch-on/off ratio 30 dB, nine-ring it 31 dB. both designs, switching speed 100 GHz.

Language: Английский

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Global-power-split-tree architecture for large-scale coherent optical matrix multiplication

Physical Review Applied, Journal Year: 2024, Volume and Issue: 22(4)

Published: Oct. 30, 2024

Photonics holds the physical potential for achieving both high-speed and low-consumption matrix multiplication. Nonetheless, due to insertion loss of optical phase shifters incurred from power splitting, traditional methods are challenging achieve high throughput, precision, energy efficiency within a single framework. In this paper, we propose global-power-split-tree (GPST) architecture large-scale coherent The decreases O(N) O(logN) when utilizing in form split-tree configurations. enhances utilization O($1/{N}^{2}$) O(1/N) through global allocation. Theoretical analysis simulation show that, compared with conventional multiplication architectures, GPST can near $10\ifmmode\times\else\texttimes\fi{}$ higher efficiency. By employing five different neural networks illustrate overall consumption GPST, find that by an order magnitude, especially integration scale is large, architectures.

Language: Английский

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Integrated Optical Tunable Delay Line and Microwave Photonic Beamforming Chip: A Review

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 10, 2024

Abstract The microwave photonic (MWP) beamforming chip is a crucial component for achieving the miniaturization of optically controlled phased array radar systems. It addresses unwanted ‘beam squint’ effect traditional electronic antenna arrays in processing wideband RF signals through optical tunable delay lines (OTDLs), which has garnered significant attention and research efforts recent years. This review provides comprehensive overview latest progress on classification, working principle, calibration measurement methods, driving control technologies, system function verifications OTDL MWP chips. Also, discussions about challenges that need to be addressed future development trends this technology are given.

Language: Английский

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