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Sub-100 W picosecond output from a phase-conjugate Nd:YVO4 bounce amplifier
1Department of Information and Image Sciences, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
Optics Express
|December 10, 2009
Summary
Researchers achieved over 80 W of picosecond laser output using a dual Nd:YVO(4) amplifier system. This high-power laser system demonstrates efficient amplification for advanced applications.
Area of Science:
- Lasers and Optics
- Materials Science
Background:
- High-power picosecond lasers are crucial for various scientific and industrial applications.
- Nd:YVO(4) (neodymium-doped yttrium orthovanadate) is a widely used gain medium for solid-state lasers.
Purpose of the Study:
- To develop a high-average-power picosecond laser system.
- To investigate the performance of a dual Nd:YVO(4) amplifier configuration.
Main Methods:
- Utilized a phase-conjugate Nd:YVO(4) bounce amplifier.
- Combined it with a second diode-side-pumped Nd:YVO(4) bounce amplifier.
- Operated the system at pulse repetition frequencies of 100 MHz and 1.0 MHz.
Main Results:
- Achieved >80 W average power at 100 MHz pulse repetition frequency.
- Demonstrated high-quality output with M(2) < 1.8.
- Obtained a pulse duration of 9.2 ps (FWHM) and peak power >7.4 MW at 1.0 MHz.
Conclusions:
- The dual Nd:YVO(4) amplifier system effectively generates high-average-power picosecond laser output.
- The demonstrated performance indicates suitability for demanding laser applications requiring high power and good beam quality.
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