| Autor: |
Almantas Galvanauskas, Kai-Chung Hou, Kai-Hsiu Liao, Ming Yuan Cheng |
| Rok vydání: |
2007 |
| Předmět: |
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| Zdroj: |
IEEE Journal of Selected Topics in Quantum Electronics. 13:559-566 |
| ISSN: |
1077-260X |
| Popis: |
High peak power fiber lasers are important for a variety of applications ranging from material processing and remote sensing to laser-plasma produced extreme ultraviolet lithography (EUV) generation. These applications require high peak powers in the megawatt range, 5-MW peak power with subnanosecond pulses, the highest peak power achieved so far from a fiber laser. Use of a variety of core sizes between 65 and 200 mum has been explored and it has been shown that for core sizes as large as 80 mum, a good output beam quality of M2 ~ 1.3 can be maintained. This corresponds to the largest ever demonstrated mode area (2750 mum2) of a conventional LMA fiber with nearly diffraction-limited output. We also demonstrate average-power scaling of megawatt peak power pulses of up to ~90 W. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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