Yanping Chen, Jianpang Zhai, Xintong Xu, Ling Li, Jinzhang Wang, Min Zhang, Shuangchen Ruan, Zikang Tang. Mode-locked thulium-doped fiber laser based on 0.3 nm diameter single-walled carbon nanotubes at 1.95 μm[J]. Chinese Optics Letters, 2017, 15(4): 041403
- Chinese Optics Letters
- Vol. 15, Issue 4, 041403 (2017)
Fig. 1. (a) Scanning electron microscopy image of AEL single crystals. (b) Raman spectrum of the SWCNTs@AEL single crystal.
Fig. 2. (a) Linear absorption spectrum of the SWCNTs@AEL single crystal. (b) Nonlinear transmittance as a function of pump peak intensity of the SWCNTs@AEL single crystal.
Fig. 3. Schematic of the mode-locked TDFL based on 0.3 nm diameter SWCNTs.
Fig. 4. (a) Optical spectrum of the mode-locked TDFL based on 0.3 nm diameter SWCNTs at the pump power of 251 mW. (b) Autocorrelation trace of the output pulse with FWHM of 972 fs. (c) RF spectrum and the output pulse trains (inset). (d) CW laser output spectrum of the TDFL without the SWCNTs@AEL single crystal in the cavity.
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