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  1. Article

    Open Access

    Compact optical convolution processing unit based on multimode interference

    Convolutional neural networks are an important category of deep learning, currently facing the limitations of electrical frequency and memory access time in massive data processing. Optical computing has been ...

    **angyan Meng, Guojie Zhang, Nuannuan Shi, Guangyi Li, José Azaña in Nature Communications (2023)

  2. Article

    Open Access

    All-fibre phase filters with 1-GHz resolution for high-speed passive optical logic processing

    Photonic-based implementation of advanced computing tasks is a potential alternative to mitigate the bandwidth limitations of electronics. Despite the inherent advantage of a large bandwidth, photonic systems ...

    Saket Kaushal, A. Aadhi, Anthony Roberge, Roberto Morandotti in Nature Communications (2023)

  3. Article

    Open Access

    Versatile metal-wire waveguides for broadband terahertz signal processing and multiplexing

    Waveguides play a pivotal role in the full deployment of terahertz communication systems. Besides signal transporting, innovative terahertz waveguides are required to provide versatile signal-processing functi...

    Junliang Dong, Alessandro Tomasino, Giacomo Balistreri, Pei You in Nature Communications (2022)

  4. Article

    Open Access

    Full recovery of ultrafast waveforms lost under noise

    The ability to detect ultrafast waveforms arising from randomly occurring events is essential to such diverse fields as bioimaging, spectroscopy, radio-astronomy, sensing and telecommunications. However, noise...

    Benjamin Crockett, Luis Romero Cortés, Saikrishna Reddy Konatham in Nature Communications (2021)

  5. Article

    Open Access

    Frequency-domain ultrafast passive logic: NOT and XNOR gates

    Electronic Boolean logic gates, the foundation of current computation and digital information processing, are reaching final limits in processing power. The primary obstacle is energy consumption which becomes...

    Reza Maram, James van Howe, Deming Kong, Francesco Da Ros in Nature Communications (2020)

  6. Article

    Open Access

    Information transfer via temporal convolution in nonlinear optics

    Nonlinear parametric processes involving ultrashort pulses are typically carried out in time domain, which mathematically corresponds to a convolution of their frequency spectra. In contrast, this spectral convol...

    Philippe Lassonde, Heide Ibrahim, Adrien Leblanc, José Azaña in Scientific Reports (2020)

  7. Article

    Open Access

    Real-time gap-free dynamic waveform spectral analysis with nanosecond resolutions through analog signal processing

    Real-time tracking of a waveform frequency content is essential for detection and analysis of fast rare events in communications, radar, radio astronomy, spectroscopy, sensing etc. This requires a method that ...

    Saikrishna Reddy Konatham, Reza Maram, Luis Romero Cortés in Nature Communications (2020)

  8. Article

    Open Access

    Programmable broadband optical field spectral sha** with megahertz resolution using a simple frequency shifting loop

    Controlling the temporal and spectral properties of light is crucial for many applications. Current state-of-the-art techniques for sha** the time- and/or frequency-domain field of an optical waveform are ba...

    Côme Schnébelin, José Azaña, Hugues Guillet de Chatellus in Nature Communications (2019)

  9. No Access

    Article

    High-dimensional one-way quantum processing implemented on d-level cluster states

    Taking advantage of quantum mechanics for executing computational tasks faster than classical computers1 or performing measurements with precision exceeding the classical limit2,3 requires the generation of speci...

    Christian Reimer, Stefania Sciara, Piotr Roztocki, Mehedi Islam in Nature Physics (2019)

  10. Article

    Open Access

    Reconfigurable photonic generation of broadband chirped waveforms using a single CW laser and low-frequency electronics

    Broadband radio-frequency chirped waveforms (RFCWs) with dynamically tunable parameters are of fundamental interest to many practical applications. Recently, photonic-assisted solutions have been demonstrated ...

    Hugues Guillet de Chatellus, Luis Romero Cortés, Côme Schnébelin in Nature Communications (2018)

  11. No Access

    Article

    On-chip frequency combs and telecommunications signal processing meet quantum optics

    Entangled optical quantum states are essential towards solving questions in fundamental physics and are at the heart of applications in quantum information science. For advancing the research and development o...

    Christian Reimer, Yanbing Zhang, Piotr Roztocki in Frontiers of Optoelectronics (2018)

  12. No Access

    Article

    Optical signal processing based on silicon photonics waveguide Bragg gratings: review

    This paper reviews the work done by researchers at INRS and UBC in the field of integrated microwave photonics (IMWPs) using silicon based waveguide Bragg gratings (WBGs). The grating design methodology is dis...

    Saket Kaushal, Rui Cheng, Minglei Ma, Ajay Mistry in Frontiers of Optoelectronics (2018)

  13. No Access

    Article

    On-chip generation of high-dimensional entangled quantum states and their coherent control

    The on-chip generation of high-dimensional frequency-entangled states and their spectral-domain manipulation are demonstrated, introducing a powerful and practical platform for quantum information processing.

    Michael Kues, Christian Reimer, Piotr Roztocki, Luis Romero Cortés in Nature (2017)

  14. Article

    Open Access

    Wideband dynamic microwave frequency identification system using a low-power ultracompact silicon photonic chip

    Photonic-based instantaneous frequency measurement (IFM) of unknown microwave signals offers improved flexibility and frequency range as compared with electronic solutions. However, no photonic platform has ev...

    Maurizio Burla, Xu Wang, Ming Li, Lukas Chrostowski, José Azaña in Nature Communications (2016)

  15. Article

    Open Access

    Reconfigurable Optical Signal Processing Based on a Distributed Feedback Semiconductor Optical Amplifier

    All-optical signal processing has been considered a solution to overcome the bandwidth and speed limitations imposed by conventional electronic-based systems. Over the last few years, an impressive range of al...

    Ming Li, Ye Deng, Jian Tang, Shuqian Sun, Jian** Yao, José Azaña in Scientific Reports (2016)

  16. Article

    Erratum: Noiseless intensity amplification of repetitive signals by coherent addition using the temporal Talbot effect

    Nature Communications 5: Article Number: 5163 10.1038/ncomms6163 (2014); Published: 16 October 2014; Updated: 19 November 2014. This Article contains an error in Fig. 1 that was introduced during the productio...

    Reza Maram, James Van Howe, Ming Li, José Azaña in Nature Communications (2014)

  17. Article

    Open Access

    Noiseless intensity amplification of repetitive signals by coherent addition using the temporal Talbot effect

    Amplification of signal intensity is essential for initiating physical processes, diagnostics, sensing, communications and measurement. During traditional amplification, the signal is amplified by multiplying ...

    Reza Maram, James Van Howe, Ming Li, José Azaña in Nature Communications (2014)

  18. No Access

    Article

    Recent progresses on optical arbitrary waveform generation

    This paper reviews recent progresses on optical arbitrary waveform generation (AWG) techniques, which could be used to break the speed and bandwidth bottlenecks of electronics technologies for waveform generat...

    Ming Li, José Azaña, Ninghua Zhu, Jian** Yao in Frontiers of Optoelectronics (2014)

  19. No Access

    Article

    Serial time-encoded amplified microscopy for ultrafast imaging based on multi-wavelength laser

    In this paper, a serial time-encoded amplified microscopy (STEAM) by employing a multi-wavelength laser as the light source is proposed and experimentally demonstrated. This system achieves ultrafast optical i...

    Ye Deng, Ming Li, Ningbo Huang, José Azaña, Ninghua Zhu in Chinese Science Bulletin (2014)

  20. No Access

    Article

    Preface

    Ming Li, José Azaña, Jian** Yao in Chinese Science Bulletin (2014)

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