Quasi-periodic vector optical field and its application in information encoding and transmission

Area of Science:

• Optics and Photonics
• Information Science

Background:

• Periodicity is common in vector optical fields (VOFs), but quasi-periodicity is rare.
• Quasi-periodicity has broad applications, notably in quasicrystal research.

Purpose of the Study:

• To introduce and investigate two-dimensional quasi-periodic VOFs for optical information manipulation.
• To explore the potential of quasi-periodic VOFs in optical information encoding and transmission.

Main Methods:

• Development of a convolution-based construction scheme for quasi-periodic VOFs.
• Implementation of an explicit information-encoding protocol.
• Experimental demonstration of the proposed VOFs and encoding scheme.

Main Results:

• Information encoded using quasi-periodic VOFs can be accurately recovered despite 75% spectral obstruction.
• The encoded information shows high robustness against 90% random wavefront interference during propagation.

Conclusions:

• Quasi-periodic VOFs offer a novel approach for robust optical information transmission.
• This work establishes a practical method for constructing and utilizing quasi-periodic VOFs for reliable long-distance communication.