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Efficient Kerr soliton comb generation in micro-resonator with interferometric back-coupling
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- Boggio, J. M. Chavez (författare)
- InnoFSPEC Leibniz Inst Astrophys Potsdam, Germany
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- Bodenmüller, D. (författare)
- InnoFSPEC Leibniz Inst Astrophys Potsdam, Germany
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- Ahmed, S. (författare)
- InnoFSPEC Leibniz Inst Astrophys Potsdam, Germany
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- (creator_code:org_t)
- 2022-03-11
- 2022
- Engelska.
- Ingår i: Nature Communications. - : Nature Portfolio. - 2041-1723. ; 13:1
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Nonlinear Kerr micro-resonators have enabled fundamental breakthroughs in the understanding of dissipative solitons, as well as in their application to optical frequency comb generation. However, the conversion efficiency of the pump power into a soliton frequency comb typically remains below a few percent. We fabricate and characterize a hybrid Mach-Zehnder ring resonator geometry, consisting of a micro-ring resonator embedded in an additional cavity with twice the optical path length of the ring. The resulting interferometric back coupling enables to achieve an unprecedented control of the pump depletion: pump-to-frequency comb conversion efficiencies of up to 55% of the input pump power is experimentally demonstrated with a soliton crystal comb. We assess the robustness of the proposed on-chip geometry by generating a large variety of dissipative Kerr soliton combs, which require a lower amount of pump power to be accessed, when compared with an isolated micro-ring resonator with identical parameters. Micro-resonators with feedback enable accessing new regimes of coherent soliton comb generation, and are well suited for comb applications in astronomy, spectroscopy and telecommunications. Increasing the conversion efficiency of soliton crystals will enable further application of optical frequency comb. Here the authors engineer an hybrid Mach-Zehnder micro-ring resonator to achieve 80% pump-to-comb conversion efficiency based on dissipative Kerr solitons.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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- Boggio, J. M. Ch ...
- Bodenmüller, D.
- Ahmed, S.
- Wabnitz, S.
- Modotto, D.
- Hansson, Tobias
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