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Open AccessCompact 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 ...
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Article
Open AccessAll-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 ...
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Article
Open AccessVersatile 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...
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Article
Open AccessFull 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...
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Article
Open AccessFrequency-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...
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Article
Open AccessInformation 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...
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Open AccessReal-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 ...
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Article
Open AccessProgrammable 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...
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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...
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Article
Open AccessReconfigurable 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 ...
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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...
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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...
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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.
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Article
Open AccessWideband 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...
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Open AccessReconfigurable 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...
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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...
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Open AccessNoiseless 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 ...
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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...
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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...
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