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Updated: Jun 20, 2026
12:14
The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Large-size Gaussian mode in unstable resonators using Gaussian mirrors.
Optics Letters
|September 5, 2009
Summary
Large Gaussian modes were successfully generated in Cassegrain resonators using novel Gaussian reflectivity convex couplers. This advancement resulted in a beam free from unwanted secondary rings in its far-field pattern.
Area of Science:
- Optics and Photonics
- Laser Physics
- Resonator Design
Background:
- Cassegrain resonators are utilized in various optical systems.
- Generating stable, high-quality Gaussian modes is crucial for laser applications.
- Conventional methods may produce undesirable artifacts in the beam profile.
Purpose of the Study:
- To experimentally produce Gaussian modes with large beam sections in Cassegrain resonators.
- To investigate the effectiveness of Gaussian reflectivity convex couplers for beam extraction.
- To analyze the far-field characteristics of the extracted beam.
Main Methods:
- Utilized Cassegrain resonators equipped with custom-designed Gaussian reflectivity convex couplers.
- Experimentally generated and extracted Gaussian modes.
- Analyzed the far-field beam patterns using appropriate optical diagnostic techniques.
Main Results:
- Successfully produced Gaussian modes with large beam sections.
- The far-field beam pattern, coupled via the Gaussian coupler, exhibited no secondary rings.
- Demonstrated the efficacy of Gaussian reflectivity convex couplers in shaping beam profiles.
Conclusions:
- Gaussian reflectivity convex couplers are effective for generating large Gaussian modes in Cassegrain resonators.
- This method provides a clean far-field beam profile, free from secondary rings.
- The findings have implications for advanced laser system design and beam control.
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