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Observation of Mode-Locked Spatial Laser Solitons
F Gustave1, N Radwell2, C McIntyre3
1Université Côte d'Azur, CNRS, 06560 Valbonne, France.
Physical Review Letters
|February 11, 2017
Summary
Researchers experimentally observed stable, self-localized nonlinear wave packets, known as spatial laser solitons, in a vertical-cavity surface-emitting laser. These findings could lead to independent cavity light bullets.
Area of Science:
- Nonlinear science
- Nonlinear photonics
- Laser physics
Background:
- Stable, self-localized nonlinear wave packets are highly sought after in nonlinear science.
- Such spatiotemporal structures are particularly important in nonlinear photonics.
Purpose of the Study:
- To experimentally observe mode-locked spatial laser solitons.
- To investigate their properties in a vertical-cavity surface-emitting laser (VCSEL) system.
Main Methods:
- Utilized a vertical-cavity surface-emitting laser (VCSEL) with frequency-selective feedback from an external cavity.
- Observed spontaneously emerging, long-term stable spatiotemporal structures.
Main Results:
- Successfully observed mode-locked spatial laser solitons.
- These solitons exhibited pulse lengths shorter than the cavity round-trip time.
- Demonstrated spontaneous emergence and long-term stability of these structures.
Conclusions:
- The experimental observation of these spatial laser solitons is a significant advancement.
- These findings may enable the development of independent cavity light bullets.
- Highlights the potential of VCSELs with external cavities for generating novel optical phenomena.
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