Diode-pumped ultrafast Yb:KGW laser with 56 fs pulses and multi-100 kW peak power based on SESAM and Kerr-lens mode locking
| Autor: | R. Akbari, K. A. Fedorova, E. U. Rafailov, A. Major |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) business.industry General Engineering General Physics and Astronomy Pulse duration Saturable absorption 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences 7. Clean energy law.invention 010309 optics Crystal Lens (optics) Optics Mode-locking law 0103 physical sciences Optoelectronics 0210 nano-technology business Ultrashort pulse Diode |
| Zdroj: | Applied Physics B. 123 |
| ISSN: | 1432-0649 0946-2171 |
| DOI: | 10.1007/s00340-017-6701-3 |
| Popis: | A high-power sub-60 fs mode-locked diode-pumped Yb:KGW laser based on hybrid action of an InGaAs quantum-dot saturable absorber mirror and Kerr-lens mode locking was demonstrated. The laser delivered 56 fs pulses with 1.95 W of average power corresponding to 450 kW of peak power. The width of the generated laser spectrum was 20.5 nm, which was near the gain bandwidth limit of the Yb:KGW crystal. To the best of our knowledge, these are the shortest pulses generated from the monoclinic double tungstate crystals (and Yb:KGW laser crystal in particular) and the most powerful in the sub-60 fs regime. At the same time, they are also the shortest pulses produced to date with the help of a quantum-dot-based saturable absorber. High-power operation with a pulse duration of 90 fs and 2.85 W of average output power was also demonstrated. |
| Databáze: | OpenAIRE |
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