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Impressum
(c) 2002 BMO

"Picosecond pulses from wavelength-swept continuous-wave Fourier domain mode-locked lasers"
Christoph M. Eigenwillig, Wolfgang Wieser, Sebastian Todor, Benjamin R. Biedermann, Thomas Klein, Christian Jirauschek, Robert Huber
Nature Communications 4: 1848 doi:10.1038/ncomms2870 (2013)


Abstract:
Ultrafast lasers have a crucial function in many fields of science; however, up to now, high-energy pulses directly from compact, efficient and low-power semiconductor lasers are not available. Therefore, we introduce a new approach based on temporal compression of the continuous-wave, wavelength-swept output of Fourier domain mode-locked lasers, where a narrowband optical filter is tuned synchronously to the round-trip time of light in a kilometre-long laser cavity. So far, these rapidly swept lasers enabled orders-of-magnitude speed increase in optical coherence tomography. Here we report on the generation of ~6070 ps pulses at 390 kHz repetition rate. As energy is stored optically in the long-fibre delay line and not as population inversion in the laser-gain medium, high-energy pulses can now be generated directly from a low-power, compact semiconductor-based oscillator. Our theory predicts subpicosecond pulses with this new technique in the future.

BMO authors (in alphabetic order):
Benjamin Biedermann
Christoph Eigenwillig
Robert Huber
Thomas Klein
Wolfgang Wieser

Assoziierte Projekte:
Fourier Domain Mode Locking (FDML): Spectral mode locking in optics and applications


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