Synthesized soliton crystals

Lu, Zhizhou; Chen, Hao-Jing; Wang, Weiqiang; Lu, Yiming; Wang, Yan; Yu, Yan; Little, Brent E.; Chu, Sai T.; Gong, Qihuang; Zhao, Wei; Xu, Yuehong; Xiao, Yun‐Feng; Zhang, Wenfu

doi:10.1038/s41467-021-23172-2

Cited by 105 publications

(45 citation statements)

References 56 publications

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“…Microcombs generated via parametric oscillation in high-Q micro-resonators, are promising optical frequency comb sources, as they offer a large number of wavelengths in integrated platforms. Significant advances have been made in microcombs, leading to a wideband, compact, high-energy-efficiency (even battery driven operation), turnkey and mass-producible comb sources for WDM-based ONNs [173][174][175][176][177][178][179][180][181][182][183].…”

Section: Discussionmentioning

confidence: 99%

Photonic Multiplexing Techniques for Optical Neuromorphic Computing

Moss¹

2022

Preprint

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The simultaneous advances in artificial neural networks and photonic integration technologies have spurred extensive research in optical computing and optical neural networks (ONNs). The potential to simultaneously exploit multiple physical dimensions of time, wavelength and space give ONNs the ability to achieve computing operations with high parallelism and large-data throughput. Different photonic multiplexing techniques based on these multiple degrees of freedom have enabled ONNs with large-scale interconnectivity and linear computing functions. Here, we review the recent advances of ONNs based on different approaches to photonic multiplexing, and present our outlook on key technologies needed to further advance these photonic multiplexing/hybrid-multiplexing techniques of ONNs.

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Section: Discussionmentioning

confidence: 99%

Photonic Multiplexing Techniques for Optical Neuromorphic Computing

Moss¹

2022

Preprint

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“…In addition, the coexisting CW component can cause soliton long-range interaction with each other and lead to perfect soliton crystal generation in Fig. 3 [53][54][55][56][57][58] , without the help of avoid mode crossings since our FFP microresonator is single-mode. The interleaved weak-intensity comb lines (peaks indicated by orange solid circles in the insets of Fig.…”

Section: Experimental Generation Of Dissipative Solitonmentioning

confidence: 99%

Dissipative soliton generation and real-time dynamics in microresonator-filtered fiber lasers

Nie

Jia

et al. 2022

Light Sci Appl

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Optical frequency combs in microresonators (microcombs) have a wide range of applications in science and technology, due to its compact size and access to considerably larger comb spacing. Despite recent successes, the problems of self-starting, high mode efficiency as well as high output power have not been fully addressed for conventional soliton microcombs. Recent demonstration of laser cavity soliton microcombs by nesting a microresonator into a fiber cavity, shows great potential to solve the problems. Here we study the dissipative soliton generation and interaction dynamics in a microresonator-filtered fiber laser in both theory and experiment. We bring theoretical insight into the mode-locking principle, discuss the parameters effect on soliton properties, and provide experimental guidelines for broadband soliton generation. We predict chirped bright dissipative soliton with flat-top spectral envelope in microresonators with normal dispersion, which is fundamentally forbidden for the externally driven case. Furthermore, we experimentally achieve soliton microcombs with large bandwidth of ~10 nm and high mode efficiency of 90.7%. Finally, by taking advantage of an ultrahigh-speed time magnifier, we study the real-time soliton formation and interaction dynamics and experimentally observe soliton Newton’s cradle. Our study will benefit the design of the novel, high-efficiency and self-starting microcombs for real-world applications.

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“…Due to the emergence of noise in the generation process [8] , the early microresonator frequency combs showed low coherence, and their application value was not expected. In recent years, with the discovery of dissipative Kerr solitons [9] , stable and fully coherent soliton microcombs can be obtained in microresonators by simultaneously balancing gain and loss, as well as dispersion and nonlinearity [10][11][12][13] .…”

Section: Introductionmentioning

confidence: 99%

Fabrication of the high-Q Si3N4 microresonators for soliton microcombs

et al. 2022

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The microresonator-based soliton microcomb has shown a promising future in many applications. In this work, we report the fabrication of high quality (Q) Si 3 N 4 microring resonators for soliton microcomb generation. By developing the fabrication process with crack isolation trenches and annealing, we can deposit thick stoichiometric Si 3 N 4 film of 800 nm without cracks in the central area. The highest intrinsic Q of the Si 3 N 4 microring obtained in our experiments is about 6 × 10 6 , corresponding to a propagation loss as low as 0.058 dBm/cm. With such a high Q film, we fabricate microrings with the anomalous dispersion and demonstrate the generation of soliton microcombs with 100 mW on-chip pump power, with an optical parametric oscillation threshold of only 13.4 mW. Our Si 3 N 4 integrated chip provides an ideal platform for researches and applications of nonlinear photonics and integrated photonics.

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Synthesized soliton crystals

Cited by 105 publications

References 56 publications

Photonic Multiplexing Techniques for Optical Neuromorphic Computing

Photonic Multiplexing Techniques for Optical Neuromorphic Computing

Dissipative soliton generation and real-time dynamics in microresonator-filtered fiber lasers

Fabrication of the high-Q Si3N4 microresonators for soliton microcombs

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