Spectral Shaping of an Ultrafast Ytterbium Fiber Laser via a Passive Intracavity Optical Filter: a Simple and Reliable Route to sub-45 fs Pulses
Posted on 2023-03-10 - 21:52
Here we investigate the use of passive intracavity optical filters for controlling the laser output spectrum of a polarization-mode-locked, ultrafast ytterbium fiber laser. The overall lasing bandwidth is increased or extended by strategic choice of the filter cutoff frequency. Overall laser performance, including pulse compression and intensity noise, is investigated for both shortpass and longpass filters with a range of cutoff frequencies. The intracavity filter not only shapes the output spectra, it provides a route for overall broader bandwidths and shorter pulses in ytterbium fiber lasers. These results demonstrate that spectral shaping with a passive filter is a useful tool to routinely achieve sub-45 fs pulse durations in ytterbium fiber lasers.
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Cooper, Nicholas; Ta, Uyen; Reber, Melanie (2023): Spectral Shaping of an Ultrafast Ytterbium Fiber Laser via a Passive Intracavity Optical Filter: a Simple and Reliable Route to sub-45 fs Pulses. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.6441194.v2
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