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Direct Imaging of Laser-driven Ultrafast Molecular Rotation
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Efficient pulse amplification using a transverse-flow CO2 laser for extreme ultraviolet light source.

Yoichi Tanino1, Tatsuya Yamamoto, Junichi Nishimae

  • 1Advanced Technology R&D Center, Mitsubishi Electric Corporation, Amagasaki, Hyogo, Japan. Tanino.Yoichi@ap.MitsubishiElectric.co.jp

Optics Letters
|February 6, 2013
PubMed
Summary

This study presents a high-power carbon dioxide (CO2) laser system achieving 1.90 kW output. The master oscillator power amplifier design demonstrates efficient laser amplification for various applications.

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Area of Science:

  • Physics
  • Optical Engineering

Background:

  • High-power lasers are crucial for industrial and scientific applications.
  • Developing efficient and scalable laser systems remains an active research area.

Purpose of the Study:

  • To construct and test a master oscillator power amplifier (MOPA) carbon dioxide (CO2) laser system.
  • To evaluate the system's performance under high electrical input power and continuous operation.

Main Methods:

  • Utilized a transverse-flow, radio-frequency (RF) pumped continuous-wave (CW) CO2 laser.
  • Conducted amplification tests with a 100% duty cycle and electrical input up to 60 kW.
  • Measured output power at a 100 kHz oscillator repetition rate with 13 W optical input power.

Main Results:

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  • Achieved a maximum output power of 1.90 kW.
  • Demonstrated a 3.1% electrical-to-optical conversion efficiency.
  • Successfully operated the system at a 100% duty cycle.

Conclusions:

  • The developed MOPA CO2 laser system is capable of high-power output.
  • The system shows potential for applications requiring significant laser power and efficiency.