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All-fiber polarization-maintaining mode-locked laser operated at 980  nm

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Original languageEnglish
Pages (from-to)2275-2278
Number of pages4
JournalOptics Letters
Issue number8
Publication statusPublished - 1 Apr 2020
Publication typeA1 Journal article-refereed


For the first time, to the best of our knowledge, we present an all-fiber polarization-maintaining passively mode-locked picosecond laser operated at 980 nm. The laser cavity had a ring configuration with a semiconductor saturable absorber mirror as a mode-locking element. As an active medium, we used a specially designed cladding-pumped Yb-doped fiber with reduced cladding-to-core diameter ratio. The laser was self-starting and operated in the net cavity normal dispersion regime, where a spectral profile of the gain medium acted as a filter element. By intracavity spectral filtering, we achieved about 40 dB dominance of the signal wavelength at 980 nm over 1 textmum emission in a highly stable picosecond pulsed regime. The corresponding simulation was performed to extend the knowledge about laser operation.


  • Fiber lasers, Laser applications, Laser operation, Master oscillator power amplifiers, Mode locking, Picosecond pulses

Publication forum classification

Field of science, Statistics Finland