Amplifier similariton generation from a Yb-doped all-normal-dispersion fiber laser employing a hybrid-mode-locking technique

Liu, Xinyang; Närhi, Mikko; Korobko, Dmitry; Gumenyuk, Regina (2022)
 
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Liu, Xinyang
Närhi, Mikko
Korobko, Dmitry
Gumenyuk, Regina
Teoksen toimittaja(t)
Jauregui-Misas, Cesar
Supradeepa, V. R.
SPIE
2022


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doi:10.1117/12.2609403
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https://urn.fi/URN:NBN:fi:tuni-202211088255

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Peer reviewed
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Apart from the classical nonlinear polarization rotation (NPR) mechanism, we incorporate an additional stabilization mechanism of frequency shifting in a Yb-doped all-normal-dispersion fiber laser oscillator. The similariton pulse with a pulse duration of 7.8 ps and a spectrum width of 20.5 nm is generated. By using a grating pair, the pulse duration can be compressed to be 140 fs. By employing time-stretch dispersion Fourier transform (TS-DFT) technique, the mode-locking pulse buildup process is investigated. The use of frequency shifting as a stabilization technique opens a new route towards reliable laser oscillator fabrication for the industrial-grade system.
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