Patterns%20and%20Solitons%20in%20nonlinear%20optical%20resonators

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Patterns and Solitonsin nonlinearoptical
resonators
V.B. Taranenko, K. Staliunas, G. Slekys C.O. Weiss
Physikalisch-Technische Bundesanstalt Braunschwei
g/Germany
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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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near field
far field
Moving solitons (numerical calculation)
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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)