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Evolution of high-order laser array locking in high peak power fiber lasers
Optics Letters
|February 28, 2025
Summary
Researchers achieved high peak power (14.9 kW) and control of high-order laser arrays in a passively Q-switched fiber laser. This breakthrough enables advanced applications in optical communication and imaging.
Area of Science:
- Optics and Photonics
- Laser Physics
Background:
- Stable output and control of higher-order laser arrays remain a significant challenge in passively Q-switched fiber laser development.
- Previous research has not fully addressed the generation of high-order arrays in Q-switched fiber lasers.
Purpose of the Study:
- To demonstrate a passively Q-switched fiber laser capable of producing high peak power.
- To investigate the formation and control of higher-order laser arrays.
- To explore the potential of such laser systems for practical applications.
Main Methods:
- Utilized a passively Q-switched fiber laser setup.
- Investigated laser mode evolution under varying pump power conditions.
- Characterized output power (peak and average) and spatial beam profiles.
Main Results:
- Achieved a notable peak output power of 14.9 kW and an average output power of 0.91 W.
- Observed the evolution of laser modes into high-order laser arrays up to 7x7 dimensions.
- Demonstrated control over laser array formation with increasing pump power.
Conclusions:
- The developed passively Q-switched fiber laser successfully generates high peak power and controllable higher-order laser arrays.
- This advancement offers a promising platform for applications requiring high-power, structured light.
- Potential applications include optical communication and nanomicroscopic imaging.
