期刊论文

Li, JT

英文

Optical and Quantum Electronics

0306-8919

2024

56

6

10.1007/s11082-024-06989-1

This work was supported by the Key Project of Education Department of Hunan Province (22A0560, 21A0499), the Natural Science Foundation of Henan Province (232300421222), and the Hunan Provincial Natural Science Foundation of China (2022JJ50276, 2023JJ50352).

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Nickel diselenide (NiSe2) microspheres were synthesized using a chemical vapor deposition (CVD) method, and their nonlinear optical properties were investigated. The prepared NiSe2 exhibits good nonlinear characteristics, demonstrating a high modulation depth and a low saturation intensity. Then the NiSe2 was used as a saturable absorber device and integrated into a 1.5μm erbium-doped fiber laser to generate Q-switched pulse. By optimizing the cavity dispersion and adjusting the polarization state within the cavity, the single pulse tunable Q-...