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| Home > Publications database > Er-Fiber laser enabled, energy scalable femtosecond source tunable from 1.3 to 1.7 $\mu$m |
| Home > Publications database > Er-Fiber laser enabled, energy scalable femtosecond source tunable from 1.3 to 1.7 $\mu$m |
| Journal Article | PUBDB-2017-04701 |
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2017
OSA
Washington, DC
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Please use a persistent id in citations: doi:10.1364/OE.25.015760 doi:10.3204/PUBDB-2017-04701
Abstract: We demonstrate that energetic femtosecond pulses tunable from 1.3 to 1.7 µm can be achieved using self-phase modulation enabled spectral broadening followed by spectral lobe filtering. Based on a home-built 5-W Er-fiber laser system operating at 31-MHz repetition rate, we obtain femtosecond pulses that can be continuously tuned from 1.3 to 1.7 µm with >4.5 nJ pulse energy. We further optimize the spectral broadening process using a fiber with larger mode area and scale up the pulse energy to >10 nJ; the resulting pulse duration is as short as ~50 fs. Such a widely tunable, energetic femtosecond source is well suited for driving a laser scanning microscope to perform deep tissue multiphoton microscopy.
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