Chinese Optics, Volume. 18, Issue 3, 510(2025)
Ultrafast erbium-doped fiber laser modulated by Nb4AlC3 saturable absorber
Fig. 1. (a) SEM image, (b) TEM image, (c) XRD pattern and (d) Raman spectrum of the Nb4AlC3 nanosheets
Fig. 2. (a) Balanced twin-detector for measuring saturable absorption properties. (b) Nb4AlC3-SA’s nonlinear saturable absorption property
Fig. 3. Linear transmittance of the fabricated tapered-fiber-structured Nb4AlC3-SA
Fig. 4. Experimental setup of a mode-locked EDF laser based on Nb4AlC3-SA
Fig. 5. (a) Spectrum, (b) pulse trains, (c) RF spectrum and (d) autocorrelation trace of conventional soliton (CS) operation
Fig. 6. (a) Output power and pulse energy vs. pump power. (b) The laser system’s long-term stability
Table 1. Comparison of EDF lasers mode locked by various MAX-PM-based SAs
View tableView in ArticleTable 1. Comparison of EDF lasers mode locked by various MAX-PM-based SAs
SAs Modulation depth ( ∆T) (%) Repetition rate ( f) (MHz) 3 dB bandwidth (Δλ) (nm) Pulse duration (Δt) (ps) SNR (dB) Output power (mW) Refs Ti2CTx 15.7 8.25 3.4 5.3 62 6.95 [ 43 ]Ti3C2Tx 0.96 218.36 3.51 0.85 36 ~ 1 [ 44 ]V2CTx 3.1 1010.0 3.1 0.94 55 ~ 25 [ 45 ]Ti3AlC2 2 1.89 0.7 3.68 52.3 15.38 [ 46 ]Ti2AlC 2.21 16.7 3.8 0.68 64.6 2.7 [ 47 ]V2AlC 18 14.98 3.4 0.85 58 3.95 [ 48 ]Nb2AlC 2.62 58.6 0.2 5.8 58 2.07 [ 49 ]Nb4AlC3 1.88 24.63 7.78 0.615 56.2 6.45 Our work
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Xiao-juan LIU, Mei-xia ZHANG, Tian-run LIU, Wen-hao LV, Cheng LU. Ultrafast erbium-doped fiber laser modulated by Nb4AlC3 saturable absorber[J]. Chinese Optics, 2025, 18(3): 510
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Received: Oct. 15, 2024
Accepted: Dec. 10, 2024
Published Online: Jun. 16, 2025
The Author Email: Xiao-juan LIU (liuxiaojuansd@163.com), Cheng LU (luchengcg@163.com)
