Journal
OPTICS EXPRESS
Volume 28, Issue 23, Pages 34104-34110Publisher
Optica Publishing Group
DOI: 10.1364/OE.403530
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Funding
- National Natural Science Foundation of China [51778030, 51978024]
- central public-interest Scientific Institution Basal Research Fund for Chinese Academy of Tropical Agricultural Science [1630082020009]
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We demonstrate an all-fiber, thulium-doped, mode-locked laser using a black phosphorus (BP) saturable absorber (SA). The BP-SA, exhibiting strong nonlinear response, is fabricated by inkjet printing. The oscillator generates self-starting 139 fs dispersion-managed soliton pulses centered at 1859nm with 55.6 nm spectral bandwidth. This is the shortest pulse duration and widest spectral bandwidth achieved directly from an all-fiber thulium-doped fiber laser mode-locked with a nanomaterial saturable absorber to date. Our findings demonstrate the applicability of BP for femtosecond pulse generation at 2 mu m spectral region. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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