Analysis of Mode Coupling Assisted Kerr Comb Generation in Normal Dispersion System

Fujii, Shun; Okabe, Yusuke; Suzuki, Ritsuro; Kato, T.; Hori, Atsuhiro; Honda, Yoshihiro; Tanabe, Takasumi

doi:10.1109/jphot.2018.2865417

Cited by 27 publications

(18 citation statements)

References 31 publications

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“…Since the soliton state exists on the lower branch of the Kerr-bistability curve, it is generally only accessible with decreasing pump frequency [39,40]. Except for the recent discoveries of special conditions (e.g., soliton crystals [41,42], breathing solitons [43], dark pulses in a normal dispersion [44][45][46]), microcombs can be mainly divided into three different states, a primary comb (i.e., Turing pattern or Turing roll), chaotic modulation instability (MI), and a dissipative Kerr soliton (DKS) [47]. The essential difference between the former two states and a soliton state is effective pump detuning, and effective red detuning results in a low soliton conversion efficiency compared with that obtained with the MI comb [19].…”

Section: Microresonator Frequency Comb Generationmentioning

confidence: 99%

Dissipative Kerr soliton microcombs for FEC-free optical communications over 100 channels

Fujii,

Tanaka,

Ohtsuka

et al. 2021

Preprint

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The demand for high-speed and highly efficient optical communication techniques has been rapidly growing due to the ever-increasing volume of data traffic. As well as the digital coherent communication used for core and metro networks, intensity modulation and direct detection (IM-DD) are still promising schemes in intra/inter data centers thanks to their low latency, high reliability, and good cost performance. In this work, we study a microresonator-based frequency comb as a potential light source for future IM-DD optical systems where applications may include replacing individual stabilized lasers with a continuous laser driven microresonator. Regarding comb line powers and spectral intervals, we compare a modulation instability comb and a soliton microcomb and provide a quantitative analysis with regard to telecom applications. Our experimental demonstration achieved a forward error correction (FEC) free operation of bit-error rate (BER) < 10 −9 with a 1.45 Tbps capacity using a total of 145 lines over the entire C-band and revealed the possibility of soliton microcomb-based ultra-dense wavelength division multiplexing (WDM) with a simple, cost-effective IM-DD scheme, with a view to future practical use in data centers.

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Section: Microresonator Frequency Comb Generationmentioning

confidence: 99%

Dissipative Kerr soliton microcombs for FEC-free optical communications over 100 channels

Fujii,

Tanaka,

Ohtsuka

et al. 2021

Preprint

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“…Previous studies on Kerr OFCs generation in dualcoupled cavities systems are based on the analysis of mode coupling between the two cavities [42,52,53]. However, the quantitative analysis of MI in dual-coupled cavities is still remained to be investigated.…”

Section: Introductionmentioning

confidence: 99%

Modulation instability of Kerr optical frequency combs in dual-coupled optical cavities

Zhu,

Zhao

2021

Preprint

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Kerr optical frequency combs generated in a coherently driven Kerr nonlinear resonator has the potential for a wide range of applications. However, in a single cavity which is a widely adopted configuration for Kerr optical frequency combs generation, modulation instability is suppressed in normal dispersion regime and the pump-to-comb conversion efficiency is extremely low for a single dissipative Kerr soliton in anomalous dispersion regime. Dual-coupled cavities have been proposed to generate Kerr optical frequency combs in normal dispersion regime, and have potential to remarkably increase conversion efficiency for Kerr optical frequency combs. Here, we investigate modulation instability and Kerr optical frequency-comb formation in dual-coupled cavities. Based on solutions of the continuous-wave steady state, we obtain a quadric algebraic equation describing the modulation instability gain, and we find that it is intensely influenced by the group velocity mismatch between the two cavities. Our numerical simulations demonstrate that platicons can be generated via pump scanning scheme for the case that both the two cavities possess normal dispersion, and a single dissipative Kerr soliton can be generated in the cavity with anomalous dispersion while the dispersion of the other cavity is normal. Our analysis of modulation instability provides a powerful tool for Kerr optical frequency-comb generation via pump modulation and cavity detuning tuning scheme in dual-coupled cavities.

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“…Moreover, coupled ring resonators host rich nonlinear dynamics and have recently attracted a lot of attention for frequency-comb generation in microresonators (see e.g. [24][25][26][27][28][29]).…”

mentioning

confidence: 99%

Self-Pulsing in driven-dissipative photonic Bose-Hubbard dimers

Yelo-Sarrión¹,

Parra‐Rivas²,

Englebert³

et al. 2021

Preprint

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We experimentally investigate the nonlinear dynamics of two coupled fiber ring resonators, coherently driven by a single laser beam. We comprehensively explore the optical switching arising when scanning the detuning of the undriven cavity, and show how the driven cavity detuning dramatically changes the resulting hysteresis cycle. By driving the photonic dimer out-of-equilibrium, we observe the occurrence of stable self-switching oscillations near avoided resonance crossings. All results agree well with the driven-dissipative Bose-Hubbard dimer model in the weakly coupled regime.

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Analysis of Mode Coupling Assisted Kerr Comb Generation in Normal Dispersion System

Cited by 27 publications

References 31 publications

Dissipative Kerr soliton microcombs for FEC-free optical communications over 100 channels

Dissipative Kerr soliton microcombs for FEC-free optical communications over 100 channels

Modulation instability of Kerr optical frequency combs in dual-coupled optical cavities

Self-Pulsing in driven-dissipative photonic Bose-Hubbard dimers

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