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High power, ultrashort pulse control through a multi-core fiber for ablation
Optics Express
|August 10, 2017
Summary
We demonstrate ultrashort pulse ablation through multi-core fibers (MCF) using wavefront shaping. This method enables precise ablation in confined spaces without distal optics, overcoming previous limitations.
Area of Science:
- Optics and Photonics
- Materials Science
- Biomedical Engineering
Background:
- Ultrashort pulse ablation is valuable for micromachining and surgery.
- Endoscopic delivery and focusing of high-power pulses in confined spaces remain challenging.
Purpose of the Study:
- To demonstrate ultrashort pulse ablation through multi-core fibers (MCF) using wavefront shaping.
- To enable precise ablation in confined spaces without distal end optics.
Main Methods:
- Wavefront shaping for focusing and scanning ultrashort pulses through MCF.
- Characterization and comparison of MCFs with varying core numbers.
- Demonstration of ablation on a thin gold film.
Main Results:
- Successful ultrashort pulse ablation through MCF without distal optics.
- Identified nonlinear effects within MCF cores as ultimate performance limitations.
- Demonstrated ablation on a gold thin film, validating the technique.
Conclusions:
- Wavefront shaping through MCF offers a pathway for miniaturized endoscopic ablation tools.
- Nonlinear effects in MCF cores are critical factors for optimizing ultrashort pulse ablation.
- This technique expands the applicability of ultrashort pulse ablation in confined environments.
