Mode Structure and Temporal Solitons in Optical Microresonators

Herr, Tobias; Brasch, Victor; Jost, John D.; Mirgorodskiy, Ivan Victorovich; Pfeiffer, Martin H. P.; Lihachev, Grigory; Gorodetsky, M. L.; Kippenberg, Tobias J.

doi:10.1364/cleo_qels.2014.fth1d.8

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…Very recently it was found that the high spectral density of modes in whispering gallery mode (WGM) microcavities significantly impacts generation of Kerr optical frequency combs [6][7][8][9][10][11][12][13]. High mode density results in mode interaction, mediated by the imperfect shape of the cavity, and modifies the phase-matching conditions responsible for comb excitation.…”

Section: Introductionmentioning

confidence: 99%

“…This process results in an unexpected soft excitation regime of frequency combs in microcavities with nominally normal group velocity dispersion (GVD) [6,12]. The same process limits the growth of the frequency comb in cavities characterized with anomalous GVD [8]. It is essential to create a nonlinear cavity free of mode interaction to generate ultrabroad optical frequency combs on a chip.…”

Section: Introductionmentioning

confidence: 99%

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Microcavity morphology optimization

et al. 2014

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High spectral mode density of conventional optical cavities is detrimental to the generation of broad optical frequency combs and to other linear and nonlinear applications. In this work we optimize the morphology of high-Q whispering gallery (WG) and Fabry-Perot (FP) cavities and find a set of parameters that allows treating them, essentially, as single-mode structures, thus removing limitations associated with a high density of cavity mode spectra. We show that both single-mode WGs and single-mode FP cavities have similar physical properties, in spite of their different loss mechanisms. The morphology optimization does not lead to a reduction of quality factors of modes belonging to the basic family. We study the parameter space numerically and find the region where the highest possible Q factor of the cavity modes can be realized while just having a single bound state in the cavity. The value of the Q factor is comparable with that achieved in conventional cavities. The proposed cavity structures will be beneficial for generation of octave spanning coherent frequency combs and will prevent undesirable effects of parametric instability in laser gravitational wave detectors.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microcavity morphology optimization

et al. 2014

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“…A numerical model suited to describe the microcomb formation can be modelled by the Lugiato-Lefever equation (LLE) 38 :…”

Section: Numerical Explorations and Experimental Resultsmentioning

confidence: 99%

Flat soliton microcomb source

Wang,

Qiu,

Liu

et al. 2023

OES

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Mode-locked microcombs with flat spectral profiles provide the high signal-to-noise ratio and are in high demand for wavelength division multiplexing (WDM)-based applications, particularly in future high-capacity communication and parallel optical computing. Here, we present two solutions to generate local relatively flat spectral profiles. One microcavity with ultra-flat integrated dispersion is pumped to generate one relatively flat single soliton source spanning over 150 nm. Besides, one extraordinary soliton crystal with single vacancy demonstrates the local relatively flat microcomb lines when the inner soliton spacings are slightly irregular. Our work paves a new way for soliton-based applications owing to the relatively flat spectral characteristics.

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Mode Structure and Temporal Solitons in Optical Microresonators

Cited by 2 publications

References 6 publications

Microcavity morphology optimization

Microcavity morphology optimization

Flat soliton microcomb source

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