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50-W average-power, 480-fs KrF excimer laser with gated gain amplification
Optics Letters
|November 28, 2007
Summary
Researchers created a 50-W average-power krypton fluoride (KrF) excimer laser. This laser system achieves a 480 fs pulse width using gated gain amplification at a 200 Hz repetition rate.
Area of Science:
- Laser Physics
- Ultrafast Optics
- Excimer Lasers
Background:
- Excimer lasers are crucial for various scientific and industrial applications.
- Achieving high average power and ultrashort pulses simultaneously presents significant challenges.
Purpose of the Study:
- To develop a high-average-power KrF excimer laser system.
- To achieve ultrashort pulse durations with high repetition rates.
Main Methods:
- Utilized gated gain amplification technique.
- Employed a KrF excimer laser medium.
- Operated at a 200 Hz repetition rate.
Main Results:
- Successfully developed a 50-W average-power KrF excimer laser.
- Achieved an ultrashort pulse width of 480 fs.
- Demonstrated stable operation at a high repetition rate.
Conclusions:
- Gated gain amplification is an effective method for producing high-power, ultrashort pulses from KrF excimer lasers.
- The developed laser system offers potential for advanced applications in materials processing and scientific research.
