Diode-Pumped Er:CaF2 Crystal 2.7 μm Tunable Laser

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F17%3A00315833" target="_blank" >RIV/68407700:21340/17:00315833 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Diode-Pumped Er:CaF2 Crystal 2.7 μm Tunable Laser
Original language description
The spectroscopic and laser properties of Er:CaF2 crystal were investigate. Under pulsed 975 nm laser diode pumping the mid infrared (2.7 µm) radiation was obtained with slope efficiency up to 3 %. The relatively low slope efficiency can be explained by a not optimized overlapping of pumping beam and the laser resonator mode. Significant improvement can be expected by optimizing this parameter together with reducing the intra-cavity losses by means of an anti-reflection-coated active medium and using of artificial atmosphere inside the laser resonator. Using the MgF2 birefringent filter the Er:CaF2 laser tunability from 2692 up to 2840 nm was reached, which is significantly wider comparing with the Er:CaF2 ceramics results (2775-2805 nm). The demonstrated broad gain bandwidth of ~4 THz (FWHM) makes this laser potentially attractive to ultra-short pulse generation in the 2.7 µm region (corresponding Fourier limited Gaussian pulse width 110 fs.
Czech name
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Czech description
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Project
<a href="/en/project/GA15-05360S" target="_blank" >GA15-05360S: Temperature influence on spectroscopic and lasing characteristics of solid-state materials covering spectral range from visible up to mid-infrared</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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