| Autor: |
E. Caracciolo, J. Aus der Au, Martin Rumpel, Federico Pirzio, Florian Kienle, M. Kemnitzer, A. Guandalini, Thomas Graf, M. Abdou Ahmed, Antonio Agnesi |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Optics letters. 40(7) |
| ISSN: |
1539-4794 |
| Popis: |
We report for the first time, to the best of our knowledge, an innovative design concept for intracavity pulse stretching in a regenerative amplifier, employing a single “grating-mirror” based on a leaky-mode grating-waveguide design. The very compact and flexible layout allows for femtosecond pulses to be in principle easily stretched up to nanosecond durations. The design has been tested in a diode-pumped Yb:CALGO regenerative amplifier followed by a standard transmission grating compressor. Sub-200-fs pulses (stretched pulses ≈110 ps) with 205-μJ energy at 20-kHz repetition rate have been demonstrated. In order to prove the robustness and potential for energy scaling of leaky-mode grating-waveguide intracavity stretcher, we generated stretched pulses with energies of up to ≈700 μJ (400-ps long) at a lower repetition rate of 10 kHz. A simple model is proposed for the study of the cavity in presence of induced spatial chirp. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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