Development of high-energy fiber CPA system
| Autor: | Ogino J., Sueda K., Kurita T., Kawashima T., Miyanaga N. |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | EPJ Web of Conferences, Vol 59, p 07004 (2013) |
| Druh dokumentu: | article |
| ISSN: | 2100-014X 19306458 |
| DOI: | 10.1051/epjconf/20135907004 |
| Popis: | An intense broadband laser system based on a Nd:glass chirped pulse amplifier (CPA) requires a stable front end with good beam quality. To prepare such a front end without using a regenerative amplifier or optical parametric chirped pulse amplification (OPCPA) pumped by the second harmonic of a Nd:YAG laser, we have developed a fiber CPA system using laser diode (LD)-pumped single-mode fibers, large-mode-area (LMA) fibers, and photonic-crystal (rod) fibers. The output pulse energy achieved was 1.2 mJ at a central wavelength of 1053 nm with a spectral width of 10 nm. The power fluctuation was reduced to 0.4% rms at a repetition rate of 10 kHz. The output of this fiber laser is useful as a pump source for a few-cycle noncollinear optical parametric amplifier (NOPA) and a seed for a LD-pumped high-power Nd:glass CPA system. |
| Databáze: | Directory of Open Access Journals |
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