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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

Gaussian mode selection with intracavity diffractive optics.

Igor A Litvin¹, Andrew Forbes

¹CSIR National Laser Centre, P.O. Box 395, Pretoria 0001, South Africa. ilitvin@csir.co.za

|October 2, 2009

Summary

This summary is machine-generated.

This study introduces a novel resonator design for efficient Gaussian mode selection using diffractive optics. It enables high energy extraction and independent control over output beam properties for optimized laser performance.

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Area of Science:

Optics and Photonics
Laser Physics

Background:

Resonator design is crucial for controlling laser beam properties.
Achieving high energy extraction while maintaining beam quality is a key challenge in laser development.

Purpose of the Study:

To present a new resonator design for selective Gaussian mode operation.
To enable high energy extraction and independent control of output beam characteristics.

Main Methods:

Utilizing diffractive optical elements for mode selection.
Implementing a beam metamorphosis from Gaussian to flat-top within the resonator.
Strategically placing the gain medium at the flat-top beam location.

Main Results:

Successful selection of Gaussian mode via diffractive optics.
Demonstration of Gaussian beam transforming into a flat-top beam.
Facilitation of high energy extraction in a low-loss cavity.
Independent control over field properties at resonator ends.

Conclusions:

The proposed resonator design offers a method for optimizing laser output.
It allows for simultaneous minimization of output divergence and maximization of output energy.
This design opens new possibilities for advanced laser systems.