| Autor: |
Patrick Bowen, John M. Dudley, Peter M. Moselund, Rasmus Dybbro Engelsholm, Thibaut Sylvestre, Sacha Grelet, Ole Bang, Etienne Genier |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). |
| DOI: |
10.1109/cleo/europe-eqec52157.2021.9542203 |
| Popis: |
Supercontinuum (SC) generation in all-normal dispersion (ANDi) photonic crystal fibers (PCFs) has recently been investigated due to its ability to generate a low-noise broadband coherent spectrum, with a noise level much lower than typical SC sources based on anomalous dispersion fibers [1] , [2] . Several recent works have however reported some limitations on the input pulse duration due to both stimulated Raman scattering (SRS) and polarization modulation instability (PMI) [2] . Here, using a polarization-maintaining (PM) ANDi PCF pumped by a compact ytterbium-doped femtosecond laser at 1049 nm, we overcome these limitations and demonstrate an ultra-flat octave-spanning (670 nm-1390 nm) coherent SC with excellent low noise (RIN 17 dB) properties. This highly-stable broadband PM-fiber based source could find strong potential applications in biomedical imaging and microscopy where improved signal to noise ratio is essential. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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