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Patterns and Solitons
in nonlinearoptical resonators
Physikalisch-Technische BundesanstaltBraunschweig/Germany
V.B. Taranenko, K. Staliunas, G. Slekys
C.O. Weiss
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Contents:
•Pattern and solitons in parametric wave mixing
•Solitons in laser with nonlinear absorber
•Moving solitons
•Simultaneous existence of larger numbers of solitons
•Conclusion
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Phase solitons in 4-wave-mixing
(prediction)
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Phase-conjugating resonator
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Phase domains
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Dynamics of phase domains (solitons)
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Contraction of phase front
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Growing phase domains
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Phase fronts Fronts and solitons
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Coexistence of fronts and
solitons
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3-D Phase
domains
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3-D Phase
solitons
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Tetraedal (diamond-)
pattern
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Vortex rings in fast laser
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Self-imaging laser resonator with nonlinear elements in conjugated planes
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Soliton in laser with nonlinear
absorber
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Soliton can be switched on everywhere
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Moving a soliton by a phase gradient
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Trapping a soliton by a
„phase-trough“
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Longitudinal mode families of a plane resonator
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Moving solitons
(schematic)
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Moving solitons
(experiment)
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Moving solitons (numerical calculation)
near field far field
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Self-imaging laser resonator with nonlinear elements in image plane
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Development of spatial solitons from a laser „vortex fluid“
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Coexisting larger numbers
of solitons
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Splitting (self-replication) of solitons
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Vortex soliton
(calculated)
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Conclusions:
• Phase solitons exist in 4-wave-mixing resonators• Bright solitons exist in laser resonators with nonlinear
absorber
(competition in velocity space or coexistence of several solitons)
• Applications possible for optical information processing
(see paper by Larionova: Spatial Solitons in Semiconductor Microcavities)