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Updated: Jan 14, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
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Strong-coupling and high-bandwidth cavity electro-optic modulation for advanced pulse-comb synthesis
Tianqi Lei1, Yunxiang Song2,3, Yanyun Xue1
1State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China.
Light, Science & Applications
|October 22, 2025
Summary
We developed a universal model for cavity electro-optic modulation, enabling advanced optical pulse and frequency comb synthesis. This framework explores strong-coupling and high-bandwidth regimes for enhanced photonic applications.
Area of Science:
- Photonics
- Nonlinear Optics
- Quantum Information Science
Background:
- Cavity electro-optic (EO) modulation is crucial for optical pulse and frequency comb synthesis.
- Existing models do not fully capture extreme conditions of strong coupling and high bandwidth.
Purpose of the Study:
- To present a universal framework for pulse-comb synthesis under strong-coupling and high-bandwidth cavity EO modulation.
- To explore nonlinear dynamics and enable arbitrary comb shaping.
Main Methods:
- Developed a universal theoretical framework for cavity EO modulation exceeding the free spectral range (FSR).
- Investigated higher-order nonlinear dynamics including temporal pulse compression.
- Utilized machine learning for inverse microwave drive design to shape frequency combs.
Main Results:
- Demonstrated rich nonlinear dynamics in EO-driven frequency combs and pulses.
- Revealed a link between EO pulse-comb dynamics and synthetic dimension band structure.
- Achieved tenfold enhancement in comb flatness using ML-designed drives and exploring detuning effects.
Conclusions:
- The framework enables universal and programmable EO frequency combs.
- Findings unlock potential for topological photonics and photonic quantum computing.
- Pushes cavity EO modulation into strong-coupling and high-bandwidth regimes.
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