Nonequilateral drifting hexagons in a strongly misaligned single-mirror system

Schäpers, B.; Ackemann, T.; Seipenbusch, J. P.; Lange, W.

doi:10.1088/1464-4266/1/1/012

Cited by 5 publications

(2 citation statements)

References 20 publications

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“…13. In order to simulate the effect of this mirror tilt, we follow the method used in [38], where before calculation of the backward field, B, using Eq. 4, the forward field is shifted by an amount ∆x = 2d tan (α).…”

Section: Controlling Droplet Motion Using Mirror Tiltmentioning

confidence: 99%

Dynamics of optomechanical droplets in a Bose-Einstein condensate

et al. 2022

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We investigate numerically a one-dimensional Bose-Einstein Condensate illuminated by offresonant laser light which is retroreflected by a single feedback mirror. Studying the ground states of the system, we find density structures which are self-trapped via the optomechanical action of the diffracted light. We show that these structures are stable and exhibit Newtonian dynamics. We propose that these results allow continuous, non-destructive monitoring of condensate dynamics via the optical intensity and may offer new opportunities for optical control and transport of coherent matter via gradients in optical phase alone.I.

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Section: Controlling Droplet Motion Using Mirror Tiltmentioning

confidence: 99%

Dynamics of optomechanical droplets in a Bose-Einstein condensate

et al. 2022

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“…At the switch-off point, the carrier density is abruptly switching back to the unsaturated value. A free-running laser, in contrast to coherently driven passive cavity or optical feedback systems [57,52,58,59], amplifiers [53] or lasers with injection [60], does not require an external holding beam. On the one hand, this is a major advantage, on the other hand this implies that there is also no option to derive control beams from the holding beam and to implement coherent soliton control via the optical hysteresis loop.…”

Section: Mechanism Of Bistability In Lasers With Frequency-selective ...mentioning

confidence: 99%

Vector vortex solitons and soliton control in vertical-cavity surface-emitting lasers

Ackemann¹,

Guillet²,

Pulham³

et al. 2021

Preprint

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The properties of vector vortex beams in vertical-cavity-surface emitting lasers with frequency-selective feedback is investigated. They are interpreted as highorder vortex solitons with a spatially non-uniform, but locally linear polarization state. In contrast to most schemes to obtain vector vortex beams relying on imprinting the polarization structure, vector vortex solitons form spontaneously due to the near polarization degeneracy in vertical-cavity devices. We observe radially, hyperbolic and spiral polarization configurations depending on small residual anisotropies in the system and multi-stability between different states. In addition, we demonstrate flip-flop operation of laser solitons via in principle local electronic nonlinearities. Combining the two themes might open up a route for a simple device enabling fast switching between different vector vortex beams for applications. The investigations connect nicely the fields of nonlinear science, singular optics, structured light and semiconductor laser technology.

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