Cheng Jiang, Xu Wang, Jian Liu, Jiqiang Ning, Changcheng Zheng, Xiaohui Li, Ziyang Zhang. Realization of high-performance tri-layer graphene saturable absorber mirror fabricated via a one-step transfer process[J]. Journal of Semiconductors, 2020, 41(1): 012302
- Journal of Semiconductors
- Vol. 41, Issue 1, 012302 (2020)
Fig. 1. (Color online) Schematic illustration of G-SAMs preparation process.
Fig. 2. The SEM micrographs of (a), (b) SLG-SAM and (c), (d) TLG-SAM.
Fig. 3. (Color online) Raman spectra of SLG and TLG fabricated via a one-step transfer process.
Fig. 4. (Color online) Nonlinear reflectivity curves of (a) SLG and (b) TLG SAMs.
Fig. 5. (Color online) Experimental result. (a) Output power versus pump power. (b) Output optical spectra. (c) Pulse train. (d) Autocorrelation trace. (e) RF spectrum of the mode locking laser. The inset shows the broadband RF spectrum at a span of 11.1 MHz.
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