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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Spatial coherence modulation.

Rafael Betancur¹, Roman Castañeda

¹Physics School, Universidad Nacional de Colombia Sede Medellín, Medellín, Colombia.

Journal of the Optical Society of America. A, Optics, Image Science, and Vision

|December 26, 2008

Summary

This summary is machine-generated.

This study introduces a novel technique for controlling optical field spatial coherence using phase-space diagrams. The method enables precise shaping of power distributions for various applications.

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Area of Science:

Optics and Photonics
Quantum Optics

Background:

Spatial coherence is a fundamental property of optical fields.
Controlling spatial coherence is crucial for applications like imaging and optical communication.

Purpose of the Study:

To discuss principles of amplitude and phase modulation of spatial coherence.
To present a novel technique for synthesizing spatial coherence modulation functions.

Main Methods:

Modification of the phase-space diagram of the optical field.
Utilizing the marginal power spectrum for modulation synthesis.
Transferring complex transmissions onto a spatial light modulator.

Main Results:

Demonstrated numerical and experimental validation of the technique.
Successfully synthesized specific spatial coherence modulation functions.
Achieved precise control over optical field power distributions.

Conclusions:

The presented technique offers a novel approach to manipulate spatial coherence.
This method facilitates the design of specific power distribution shapes.
The technique has potential applications in optical system design and manipulation.