Compact broadband silicon-integrated Airy beam emitter

Area of Science:

• Photonics
• Integrated Optics
• Nanophotonics

Background:

• Conventional generation of Optical Airy beams requires complex and bulky optical setups.
• There is a need for miniaturized and integrated solutions for Airy beam generation.

Purpose of the Study:

• To propose and demonstrate a novel on-chip compact Airy beam emitter.
• To utilize shallow-etched holography gratings on a silicon platform for Airy beam generation.

Main Methods:

• Fabrication of a shallow-etched holography grating on a silicon strip waveguide.
• Design based on the binary interferogram of guided waves and spatial Airy beams.
• Numerical simulations to verify the generation of 2D Airy beams.

Main Results:

• A 20µm×20µm holography grating successfully generated 2D Airy beams.
• The device operates within the wavelength range of 1490 to 1570 nm.
• The generated beams exhibit phase distributions consistent with Airy beams.

Conclusions:

• The proposed holography grating offers a compact and efficient method for on-chip Airy beam generation.
• This technology paves the way for integrated photonic devices.
• Potential applications include on-chip imaging, optical forces, and optical interconnections.