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Long-pulse excimer integrated master-oscillator-power-amplifier optical cavity.
Optics Letters
|September 22, 2009
Summary
This study details an advanced optical cavity for excimer lasers, achieving high-quality, tunable laser output. The system efficiently extracts 600 mJ pulses with over 95% signal purity from a single XeCl laser.
Area of Science:
- Laser Physics
- Optical Engineering
- Excimer Laser Technology
Background:
- Long-pulse, wide-aperture electric discharge excimer lasers present challenges in beam quality and tunability.
- Efficient extraction of high-energy, spectrally pure laser radiation is crucial for various applications.
Purpose of the Study:
- To describe the performance of an integrated master-oscillator-power-amplifier (MOPA) optical cavity.
- To achieve efficient extraction of polarized, line-narrowed, tunable, and near-diffraction-limited radiation.
- To demonstrate high pulse energy and signal purity from a XeCl excimer laser system.
Main Methods:
- Utilized an integrated master-oscillator-power-amplifier (MOPA) optical cavity design.
- Employed an electric discharge excitation method for a wide-aperture XeCl excimer laser.
- Characterized the extracted radiation for polarization, spectral narrowing, tunability, and beam quality.
Main Results:
- Achieved high pulse energies of 600 mJ from a single laser.
- Demonstrated signal purity exceeding 95%.
- Successfully extracted polarized, line-narrowed, tunable, and near-diffraction-limited radiation.
Conclusions:
- The integrated MOPA optical cavity is highly effective for efficient radiation extraction from XeCl excimer lasers.
- The system offers a robust solution for generating high-quality, high-energy laser pulses.
- This technology enables advanced laser applications requiring precise spectral and spatial beam characteristics.
