Patterns and Solitons in nonlinear optical resonators

Patterns and Solitons

in nonlinearoptical resonators

Physikalisch-Technische BundesanstaltBraunschweig/Germany

V.B. Taranenko, K. Staliunas, G. Slekys

C.O. Weiss

Physikalisch-Technische Bundesanstalt

Contents:

•Pattern and solitons in parametric wave mixing

•Solitons in laser with nonlinear absorber

•Moving solitons

•Simultaneous existence of larger numbers of solitons

•Conclusion


Phase solitons in 4-wave-mixing

(prediction)


Phase-conjugating resonator


Phase domains


Dynamics of phase domains (solitons)


Contraction of phase front


Growing phase domains


Phase fronts Fronts and solitons


Coexistence of fronts and

solitons


3-D Phase

domains


3-D Phase

solitons


Tetraedal (diamond-)

pattern


Vortex rings in fast laser


Self-imaging laser resonator with nonlinear elements in conjugated planes


Soliton in laser with nonlinear

absorber


Soliton can be switched on everywhere


Moving a soliton by a phase gradient


Trapping a soliton by a

„phase-trough“


Longitudinal mode families of a plane resonator


Moving solitons

(schematic)


Moving solitons

(experiment)


Moving solitons (numerical calculation)

near field far field


Self-imaging laser resonator with nonlinear elements in image plane


Development of spatial solitons from a laser „vortex fluid“


Coexisting larger numbers

of solitons


Splitting (self-replication) of solitons


Vortex soliton

(calculated)


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)

Patterns and Solitons in nonlinear optical resonators

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