Journal
LASER & PHOTONICS REVIEWS
Volume 16, Issue 2, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/lpor.202100255
Keywords
fiber lasers; saturable absorbers; ternary transition metal dichalcogenides; vector solitons
Categories
Funding
- National Natural Science Foundation of China (NSFC) [12075190, 11875044]
- Key Industry Innovation Chain of Shaanxi Province [2020ZDLSF0408]
- Innovation Capability Support Program of Shaanxi [2021TD-09]
- Young Talent fund of University Association for Science and Technology in Shaanxi, China [20190113]
- Fundamental Research Funds for the Central Universities [2019XD-A09-3]
- Open Research Fund of State Key Laboratory of Pulsed Power Laser Technology [SKL2019KF04]
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The study focuses on the application of NbxRe(1-x)S2 nanosheets in ultrafast photonics. By incorporating the NbxRe(1-x)S2-microfiber saturable absorber into a net positive dispersion Er-doped fiber laser cavity, stable dissipative soliton pulses were generated. The NbxRe(1-x)S2-based mode-locked fiber laser demonstrated superior comprehensive performance compared to previous works based on 2D materials-based saturable absorbers.
2D ternary transition metal dichalcogenides (TMDCs) have been studied widely by researchers from the fields of nanotechnology to materials science because of the extraordinary chemical/physical characteristics, and significant potential in nanoscale device applications. Here, the application of NbxRe(1-x)S2 nanosheets in ultrafast photonics is studied. The few-layer NbxRe(1-x)S2 nanosheets are fabricated through liquid phase exfoliation method and a NbxRe(1-x)S2-microfiber device is constructed by depositing these nanosheets onto the tapered region of a microfiber. After incorporating the NbxRe(1-x)S2-microfiber saturable absorber (SA) into a net positive dispersion Er-doped fiber (EDF) laser cavity, the generation of stable dissipative soliton pulses with a pulse duration of 1.03 ps proved as polarization-locked vector solitons upon further study. With pump power growing to 900 mW, the average output power increases to 116.9 mW without pulse splitting. Besides, the pulse width can be compressed to 149.6 fs outside the cavity by using a single-mode fiber. Compared with previous works based on 2D materials-based saturable absorbers, the NbxRe(1-x)S2-based mode-locked fiber laser proposed herein, reveals superior comprehensive performance.
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