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Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
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Real-time transition dynamics and stability of chip-scale dispersion-managed frequency microcombs
Yongnan Li1,2, Shu-Wei Huang1,3, Bowen Li4
11Fang Lu Mesoscopic Optics and Quantum Electronics Laboratory, University of California, Los Angeles, CA 90095 USA.
Light, Science & Applications
|April 15, 2020
Summary
Researchers reveal the real-time dynamics of frequency microcombs transitioning from chaos to femtosecond mode-locking. This breakthrough offers a new path towards high-power microcombs and understanding ultrafast dissipative dynamics.
Area of Science:
- Optics and Photonics
- Quantum Optics
- Nonlinear Optics
Background:
- Femtosecond mode-locked laser frequency combs are crucial for precision spectroscopy and atomic clocks.
- Frequency microcombs on chip-scale platforms offer similar precision via nonlinear microresonators.
- Real-time dynamics and high-power stability of frequency microcombs remain underexplored.
Purpose of the Study:
- To investigate the transitional dynamics of frequency microcombs from chaotic states to femtosecond mode-locking in real time.
- To enhance the stability and power of frequency microcombs.
- To provide a novel platform for studying ultrafast dissipative dynamics.
Main Methods:
- Utilized ultrafast temporal magnifier metrology to observe transitional dynamics.
- Employed dispersion-managed dissipative solitons for improved oscillator stability.
- Developed a dispersion-managed oscillator for enhanced microcomb performance.
Main Results:
- Successfully unraveled the real-time transitional dynamics from chaotic background routes to femtosecond mode-locking.
- Achieved a stability zone over an order of magnitude larger than previous static homogeneous counterparts.
- Demonstrated improved stability of dispersion-managed dissipative solitons.
Conclusions:
- The study provides unprecedented insight into the real-time dynamics of frequency microcomb generation.
- The developed dispersion-managed oscillator offers a significantly enhanced stability zone.
- This work paves the way for high-power frequency microcombs and advanced studies in ultrafast dissipative dynamics.
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