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Updated: Jun 17, 2026
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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Summary
A new, cost-effective interferometer evaluates laser rod properties. This versatile instrument analyzes both internal and surface characteristics of highly doped laser rods under various conditions.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Assessing the quality of laser rods is crucial for optimal laser performance.
- Existing methods may be costly or limited in scope for evaluating combined optical properties.
Purpose of the Study:
- To develop an inexpensive and versatile interferometer for comprehensive laser rod evaluation.
- To characterize both surface and internal properties of long, highly doped laser rods.
Main Methods:
- Development of a modified Mach-Zehnder interferometer.
- Configuration allows testing of Brewster-ended and square-ended rods.
- Adaptable for both pumped and unpumped laser rod conditions.
Main Results:
- The interferometer successfully evaluates combined surface and internal properties.
- Demonstrated versatility across different rod types and conditions.
- Provided shadowgraph pictures and interferograms for analysis.
Conclusions:
- The developed interferometer offers a cost-effective solution for laser rod quality assessment.
- Its unique design enhances versatility for various laser rod types and operational states.
- Enables detailed optical characterization crucial for laser development.
