Xiancui Su, Baitao Zhang, Yiran Wang, Guanbai He, Guoru Li, Na Lin, Kejian Yang, Jingliang He, Shande Liu, "Broadband rhenium disulfide optical modulator for solid-state lasers," Photonics Res. 6, 498 (2018)

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- Photonics Research
- Vol. 6, Issue 6, 498 (2018)

Fig. 1. Theoretical band structure of monolayer ReS 2 . (a) R = 1 ∶ 2.057 , (b) R = 1 ∶ 2 , (c) R = 1 ∶ 1.972 , (d) R = 1 ∶ 1.944 , and (e) R = 1 ∶ 1.889 .

Fig. 2. Measured position and the corresponding EDS image of (a) the raw bulk ReS 2 and (b) the as-prepared few-layered ReS 2 .

Fig. 3. (a), (b) AFM image of the ReS 2 SA with 30 μm × 30 μm area and the corresponding distribution of flake thicknesses. (c), (d) High-resolution AFM image with 6 μm × 6 μm area and the typical height profiles.

Fig. 4. (a) Raman spectra of the ReS 2 SA and the sapphire substrate. (b) Absorption spectra of the ReS 2 SA and the sapphire substrate, respectively. (c)–(e) Open aperture Z-scan curves of the ReS 2 SA at 0.73, 1.06 and 1.94 μm, respectively.

Fig. 5. ReS 2 Q -switched laser characteristics. (a)–(c) Average output power and peak power versus the absorbed pump power at 0.64, 1.064, and 1.991 μm, respectively. (d)–(f) Pulse duration and repetition rate versus the absorbed pump power at 0.64, 1.064, and 1.991 μm, respectively.

Fig. 6. (a)–(c) Recorded pulses trains of the ReS 2 -based Q -switched lasers at 0.64, 1.064, and 1.991 μm, respectively. (d)–(f) Measured output spectra of the ReS 2 -based Q -switched lasers at 0.64, 1.064, and 1.991 μm, respectively.

Fig. 7. Experimental setup of the ReS 2 -based mode-locked laser.

Fig. 8. (a) Average output power versus the absorbed pump power of the ReS 2 -based mode-locked laser. (b) Recorded CWML pulse trains under the maximum pump power.

Fig. 9. Recorded results of ReS 2 -based mode-locked laser. (a), (b) Autocorrelation trace for 323 fs duration and the corresponding spectrum. (c), (d) Recorded frequency spectrum with a narrow and a wide span, respectively.
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Table 1. Results of the Passively Q -Switched Lasers Based on the ReS 2 SA

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