Stabilizing and controlling domain walls and dark-ring cavity solitons

Area of Science:

• Nonlinear optics
• Cavity solitons
• Optical resonators

Background:

• Controlling domain walls (DW) in nonlinear optical systems is crucial for developing advanced optical devices.
• Phase-sensitive resonators offer unique properties for manipulating light-based information.

Purpose of the Study:

• To demonstrate two distinct techniques for controlling and stabilizing domain walls (DW) in phase-sensitive, nonlinear optical resonators.
• To explore the application of these techniques in creating optical memory devices.

Main Methods:

• Utilizing input pumps with spatially modulated phase to control DWs and dark-ring cavity solitons.
• Employing plane wave input pumps with intensity holes to topologically capture DWs.

Main Results:

• Demonstrated an optical memory based on phase-gradient-induced advection of features.
• Showcased an optical memory utilizing arrays of intensity holes to define spatial optical bits.
• Validated techniques in a degenerate optical parametric oscillator model.

Conclusions:

• Two effective methods for DW control in nonlinear optical cavities have been established.
• These techniques provide pathways for robust optical memory and information processing applications.
• The demonstrated methods are broadly applicable to various phase-sensitive nonlinear optical cavities.