Two spatial light modulator system for laboratory simulation of random beam propagation in random media

Area of Science:

• Optics and Photonics
• Wave Propagation
• Statistical Optics

Background:

• Simulating complex optical phenomena is crucial for understanding light-matter interactions.
• Random optical fields and media present significant challenges in theoretical and experimental optics.
• Existing methods for simulating random beam propagation can be computationally intensive or limited in scope.

Purpose of the Study:

• To develop and validate an optical system capable of accurately simulating random beams.
• To investigate the propagation characteristics of a novel class of random optical frames.
• To analyze beam behavior in free space and various turbulent atmospheric conditions.

Main Methods:

• Utilizing a laser source and two sequential phase-only spatial light modulators (SLMs).
• The first SLM generates the random beam, while the second SLM simulates the random medium.
• Employing experimental propagation studies in free space and simulated weak turbulent channels.

Main Results:

• The proposed optical system accurately simulates random beams after interaction with a stationary random medium.
• Demonstrated the system's capability to model propagation through diverse turbulent environments.
• Successfully analyzed the behavior of a new class of random optical frames under different conditions.

Conclusions:

• The two-SLM optical system offers a versatile and accurate platform for studying random beam propagation.
• This approach provides valuable insights into light propagation in complex and turbulent media.
• The findings have implications for optical communications, imaging, and remote sensing in atmospheric conditions.