Nonlinear optical Fourier transform in an optical superlattice with "x+2" structure

Area of Science:

• Photonics and Optical Engineering
• Nonlinear Optics
• Integrated Optics

Background:

• Optical Fourier transforms are essential for beam manipulation.
• Nonlinear optical processes offer unique functionalities for light control.
• Integrated photonic devices enable miniaturization and enhanced performance.

Purpose of the Study:

• To propose a simplified method for achieving optical Fourier transforms within nonlinear wave shaping.
• To demonstrate the utility of integrated optical superlattices for multifunctional optical operations.
• To showcase the practical application of this method in generating Airy beams.

Main Methods:

• Design of an integrated optical superlattice capable of performing multiple optical functions.
• Integration of nonlinear harmonic generation with optical Fourier transform capabilities.
• Demonstration using the nonlinear generation of Airy beams.

Main Results:

• Successful implementation of optical Fourier transform during nonlinear wave shaping.
• The designed superlattice effectively supports both nonlinear harmonic generation and Fourier transform processes.
• Validated the method's effectiveness through the generation of nonlinear Airy beams.

Conclusions:

• The proposed method offers a universal approach for optical beam shaping.
• Integrated optical superlattices are key components for multifunctional nonlinear optical devices.
• This technique holds significant practical importance for the development of compact nonlinear optical systems.