Switchable single-wavelength and dual-wavelength dissipative soliton erbium-doped fiber laser based on SMS and NPR hybrid mode locking
Year: 2026
Type: article
Abstract: We demonstrate a hybrid mode-locked erbium-doped fiber laser utilizing the synergistic interaction between a single-mode fiber-graded-index multimode fiber-single mode fiber structure (SMS) and nonlinear polarization rotation (NPR). By combining the saturable absorption and comb filter effects of the SMS structure with the tunable polarization-dependent loss induced by NPR, the net gain across different wavebands can be precisely balanced to suppress mode competition. In the net-normal dispersion regime, switchable single-wavelength mode-locking at 1540 and 1570 nm, as well as stable dual-wavelength dissipative soliton generation at 1531.42 and 1559.28 nm, are experimentally achieved. The laser exhibits excellent performance with a maximum signal-to-noise ratio of 92.48 dB and pulse durations ranging from 21.69 to 9.27 ps. This hybrid scheme offers a robust and flexible approach for developing versatile multi-wavelength ultrafast sources.
Source: Applied Optics
DOI: 10.1364/ao.587580
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W7128434333