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High-repetition-frequency pulse burst generator based on a fiber ring cavity.
Optics Letters
|February 27, 2026
Summary
A novel all-fiber pulse burst generator achieves high repetition rates using a fiber ring cavity and Vernier effect. This system offers adjustable parameters and introduces temporal fractal bursts for advanced applications.
Area of Science:
- Optics and Photonics
- Laser Physics
Background:
- High pulse repetition frequency (PRF) is crucial for advanced laser applications.
- Existing pulse burst generators face limitations in flexibility and envelope control.
Purpose of the Study:
- To demonstrate an all-fiber pulse burst generator with high sub-pulse PRF.
- To introduce flexible control over burst parameters and a novel temporal fractal burst.
Main Methods:
- Utilized a fiber ring cavity for pulse replication.
- Incorporated the Vernier effect to achieve high sub-pulse PRF.
- Employed pre-modulation for a flat burst envelope and developed temporal fractal generation.
Main Results:
- Successfully demonstrated an all-fiber pulse burst generator with high sub-pulse PRF.
- Achieved flexible adjustment of sub-pulse count and burst repetition frequency.
- Developed the first temporal fractal burst with self-similarity.
Conclusions:
- The developed laser system offers high PRF and adjustable parameters.
- The novel temporal fractal burst provides enhanced temporal control.
- Significant potential for material processing and biomedical applications.

