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EnglishBy exploiting a more favourable surface/volume ratio for heat exchange and pump absorption distribution over significantly increased length, single crystal fibers (SCF) are considered promising candidate as a replacement for bulk crystals in high-power laser systems. So far, micro-pulling down (µ-PD) technique was successfully employed mainly in growing cubic crystals, most impressive results being obtained with Yb:YAG. Birefringent SCF are also attractive, as they provide a quite straightforward means of avoiding beam quality degradation at high thermal load due to depolarization. The first Nd:YLF laser based on fiber crystals was reported earlier. However, from the perspective of high-power applications, Ytterbium-doped materials are definitely more interesting, owing to the much smaller quantum defect and absence of excited-state absorption.
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| Titolo: | Multi-watt multi-pass amplification in a 42-mm-long Yb:LuLiF4 single crystal fiber grown by the micro-pulling-down method | |
| Autori: | ||
| Data di pubblicazione: | 2019 | |
| Abstract: | By exploiting a more favourable surface/volume ratio for heat exchange and pump absorption distribution over significantly increased length, single crystal fibers (SCF) are considered promising candidate as a replacement for bulk crystals in high-power laser systems. So far, micro-pulling down (µ-PD) technique was successfully employed mainly in growing cubic crystals, most impressive results being obtained with Yb:YAG. Birefringent SCF are also attractive, as they provide a quite straightforward means of avoiding beam quality degradation at high thermal load due to depolarization. The first Nd:YLF laser based on fiber crystals was reported earlier. However, from the perspective of high-power applications, Ytterbium-doped materials are definitely more interesting, owing to the much smaller quantum defect and absence of excited-state absorption. | |
| Handle: | http://hdl.handle.net/11571/1318966 | |
| ISBN: | 978-1-7281-0469-0 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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