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Updated: Jul 6, 2026
12:18
Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Active laser resonator performance: formation of a specified intensity output
Applied Optics
|March 28, 2008
Summary
Researchers created super-Gaussian laser modes using a flexible mirror, boosting power by 12% and far-field intensity by 1.6x compared to standard Gaussian modes.
Area of Science:
- Laser physics
- Optical engineering
Background:
- Industrial lasers like CO2 and YAG:Nd3+ typically operate in a Gaussian TEM00 mode.
- Achieving higher-order super-Gaussian modes is desirable for applications requiring specific beam profiles.
Purpose of the Study:
- To investigate the formation of super-Gaussian intensity distributions for laser fundamental modes.
- To experimentally demonstrate the use of an intracavity flexible mirror for mode control.
Main Methods:
- Utilized a water-cooled, four-electrode bimorph flexible mirror within the laser cavity.
- Analyzed the output of stable resonators for continuous-wave (cw) CO2 and YAG:Nd3+ lasers.
- Experimentally formed fourth- and sixth-order super-Gaussian modes in a cw CO2 laser.
Main Results:
- Confirmed the possibility of forming fourth-, sixth-, and eighth-order super-Gaussian modes.
- Successfully generated fourth- and sixth-order super-Gaussian fundamental modes experimentally.
- Observed a power increase of up to 12% compared to the TEM00 mode.
- Achieved a 1.6-fold increase in the peak far-field intensity.
Conclusions:
- Intracavity flexible mirrors enable the controlled formation of super-Gaussian laser modes.
- Super-Gaussian modes offer significant advantages in power and intensity compared to Gaussian modes for specific laser types.
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