Microbubble resonator dispersion engineering for blue-band soliton comb generation
| Project/Area Number |
22K14621
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 30020:Optical engineering and photon science-related
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| Research Institution | Okinawa Institute of Science and Technology Graduate University |
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Principal Investigator |
TIAN Ke 沖縄科学技術大学院大学, 量子技術のための光・物質相互作用ユニット, 客員研究員 (90914218)
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| Project Period (FY) |
2022-04-01 – 2025-03-31
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| Project Status |
Granted (Fiscal Year 2023)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Keywords | microbubble resonator / optical frequency comb / blue-band |
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| Outline of Research at the Start |
This research project aims to push the shortest soliton Kerr combs to the blue-band. Dispersion engineering by proper design of silica microbubble resonator geometry enables us to address the key scientific question. The strong material dispersion will be compensated by geometrical dispersion, and the overall anomalous dispersion transmission wavelength will be extended to the blue-band (~460 nm).
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| Outline of Annual Research Achievements |
During this research cycle, we completed structural characterization of the microbubble resonator using focused ion beam and scanning electron microscopy to model dispersion. A theoretical model based on the optical waveguide approximation has been proposed to describe the WGMs in the thin-walled microbubble cavity.
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| Current Status of Research Progress |
Current Status of Research Progress
3: Progress in research has been slightly delayed.
Reason
Since the wall thickness of the microbubble resonator is non-uniform along the cavity axis, its dispersion is related to the coupling position of the pump light. During this research cycle, we completed structural characterization of the microbubble resonator using focused ion beam and scanning electron microscopy to model dispersion, but this delayed the achievement of the project goals.
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| Strategy for Future Research Activity |
Subsequent research efforts will focus on the blue-band soliton comb generation, including the construction of optical frequency comb system and the manipulation of optical frequency combs.
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Report
(2 results)
Research Products
(2 results)
