Self-emergence of robust solitons in a microcavity

Rowley, Maxwell; Hanzard, Pierre-Henry; Cutrona, Antonio; Bao, Hualong; Chu, Sai T.; Little, Brent E.; Morandotti, Roberto; Moss, David; Oppo, Gian-Luca; Gongora, Juan Sebastian Totero; Peccianti, Marco; Pasquazi, Alessia

doi:10.1038/s41586-022-04957-x

Cited by 104 publications

(51 citation statements)

References 64 publications

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“…Further, all of the other components have been demonstrated in integrated form, including integrated InP spectral shapers [93], high-speed integrated lithium niobite modulators [94], integrated dispersive elements [91], and photodetectors [95]. Finally, low power -consumption [96] and highly efficient laser cavity-soliton [97,98] Kerr combs have recently been demonstrated, that would greatly reduce the energy requirements.…”

Section: Discussionmentioning

confidence: 99%

Video image processing using optical Kerr microcombs

Moss¹

2022

Preprint

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Advanced image processing will be crucial for emerging technologies such as autonomous driving, where the requirement to quickly recognize and classify objects under rapidly changing, poor visibility environments in real time will be needed. Photonic technologies will be key for next-generation signal and information processing, due to their wide bandwidths of 10’s of Terahertz and versatility. Here, we demonstrate broadband real time analog image and video processing with an ultrahigh bandwidth photonic processor that is highly versatile and reconfigurable. It is capable of massively parallel processing over 10,000 video signals simultaneously in real time, performing key functions needed for object recognition, such as edge enhancement and detection. Our system, based on a soliton crystal Kerr optical micro-comb with a 49GHz spacing with >90 wavelengths in the C-band, is highly versatile, performing different functions without changing the physical hardware. These results highlight the potential for photonic processing based on Kerr microcombs for chip-scale fully programmable high-speed real time video processing for next generation technologies.

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Section: Discussionmentioning

confidence: 99%

Video image processing using optical Kerr microcombs

Moss¹

2022

Preprint

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“…These results have significant implications for designing and engineering nonlinear photonic chips that would benefit from the integration of GO films for applications such as classical and quantum optical microcombs. [90][91][92][93][94][95][96][97][98][99] Figure 6. Experimental results of the total and permanent EPL induced by a CW light and optical pulses versus average input power for the hybrid waveguides coated with 1 layer of GO.…”

Section: Discussionmentioning

confidence: 99%

Photo-thermal Tuning of Graphene Oxide Coated Integrated Optical Waveguides

Moss¹

2022

Preprint

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We experimentally investigate power-sensitive photo-thermal tuning (PTT) of two-dimensional (2D) graphene oxide (GO) films coated on integrated optical waveguides. We measure the light power thresholds for reversible and permanent GO reduction in silicon nitride (SiN) waveguides integrated with 1 and 2 layers of GO. Raman spectra at different positions of a hybrid waveguide with permanently reduced GO are characterized, verifying the inhomogeneous GO reduction along the direction of light propagation through the waveguide. The differences between the PTT induced by a continuous-wave laser and a pulsed laser are also compared, confirming that the PTT mainly depend on the average input power. These results reveal interesting features for 2D GO films coated on integrated optical waveguides, which are of fundamental importance for the control and engineering of GO’s properties in hybrid integrated photonic devices.

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“…In Table 3, we compare different driving mechanisms for generating optical microcombs. Previously, typical driving mechanisms, including frequency scanning [10,65,179,180], power kicking [181][182][183], forward and backward tuning [184], two-colour pumping [185][186][187], EO modulation [97,188,189], self-injection locking [74,190,191], filter-driven FWM [106,176,192], integrated heaters [99,149,193], and self-referencing [194][195][196], have been reviewed in many articles [12,83,177]. Here we review and discuss new and innovative mechanisms introduced after 2018 [88,106,110,141,145,147,159,[197][198][199][200], generally with the aim of achieving simple and natural generation of high-performance microcombs with high stability and efficiency.…”

Section: Driving Mechanismsmentioning

confidence: 99%

“…Microcomb-based frequency synthesizers have been used for synthesizing not only microwave but also optical frequencies -well beyond that offered by LFCs generated from solid-state lasers and mode-locked fiber lasers [16,206,207]. Although the frequency stability and spectral purity of microcomb-based frequency synthesizers are still not as good as their bulky counterparts, the gap between them is continuously narrowing owing to the advances in technologies for generating soliton microcombs with high coherence and stability [88,159,192]. By further reducing the linewidths and noise of lasers for pumping microcombs as well as improving the mechanical and thermal stability of microcomb-based frequency synthesizing systems, there is still room for future improvement.…”

Section: Challenges and Perspectivesmentioning

confidence: 99%

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Integrated Optical Frequency Microcomb Applications

Moss¹

2023

Preprint

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Optical microcombs represent a new paradigm for generating laser frequency combs based on compact chip-scale devices, which have underpinned many modern technological advances for both fundamental science and industrial applications. Along with the surge in activity related to optical micro-combs in the past decade, their applications have also experienced rapid progress ‒ not only in traditional fields such as frequency synthesis, signal processing, and optical communications, but also in new interdisciplinary fields spanning the frontiers of light detection and ranging (LiDAR), astronomical detection, neuromorphic computing, and quantum optics. This paper reviews the applications of optical microcombs. First, an overview of the devices and methods for generating optical microcombs is provided, which are categorized into material platforms, device architectures, soliton classes, and driving mechanisms. Second, the broad applications of optical microcombs are systematically reviewed, which are categorized into microwave photonics, optical communications, precision measurements, neuromorphic computing, and quantum optics. Finally, the current challenges and future perspectives are discussed.

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Self-emergence of robust solitons in a microcavity

Cited by 104 publications

References 64 publications

Video image processing using optical Kerr microcombs

Video image processing using optical Kerr microcombs

Photo-thermal Tuning of Graphene Oxide Coated Integrated Optical Waveguides

Integrated Optical Frequency Microcomb Applications

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