期刊
PHOTONICS
卷 10, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/photonics10060610
关键词
niobium diselenide; saturable absorber; nonlinear absorption characteristics; fiber laser; mode-locked laser
类别
The saturable absorber of niobium diselenide (NbSe2) prepared using liquid-phase exfoliation exhibits a wide working bandwidth and excellent nonlinear optical response. Its saturation intensity and modulation depth are 5.35 MW/cm(2) and 6.3%, respectively. Stable mode-locking of an erbium-doped fiber laser based on a NbSe2 saturable absorber is achieved, with a center wavelength of 1558.7 nm. The maximum average output power of the mode-locked laser is 6.93 mW, with a pulse width of 1.3 ps and a repetition rate of 25.31 MHz at a pump power of 550 mW. NbSe2 shows great potential as a photoelectric modulation material due to its excellent nonlinear optical properties.
The saturable absorber of niobium diselenide (NbSe2), with a wide working bandwidth and excellent nonlinear optical response, was prepared using liquid-phase exfoliation. Its saturation intensity and modulation depth were 5.35 MW/cm(2) and 6.3%, respectively. Stable mode-locking with a center wavelength of 1558.7 nm of an erbium-doped fiber laser based on a NbSe2 saturable absorber was successfully achieved. The maximum average output power of the mode-locked laser was 6.93 mW, with a pulse width of 1.3 ps and a repetition rate of 25.31 MHz at a pump power of 550 mW. The results show that NbSe2 is a promising photoelectric modulation material owing to its excellent nonlinear optical properties.
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