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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

This summary is machine-generated.

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.

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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.