Single-walled carbon nanotube solution-based saturable absorbers for mode-locked fiber laser

Yonggang Wang; Lu Li; Hang Sun; Lina Duan; Xi Wang; Jinhai Si

doi:10.1117/1.OE.54.8.086103

20 August 2015 Single-walled carbon nanotube solution-based saturable absorbers for mode-locked fiber laser

Yonggang Wang, Lu Li, Hang Sun, Lina Duan, Xi Wang, Jinhai Si

Author Affiliations +

Optical Engineering, Vol. 54, Issue 8, 086103 (August 2015). https://doi.org/10.1117/1.OE.54.8.086103

Abstract

The report proposed a saturable absorber based on a D-shaped fiber embedded in a single-walled carbon nanotube solution. Such a saturable absorber solution method with a D-shaped fiber has the virtues of good antioxidant capacity, excellent scattering resistance, high heat dissipation, and high damage threshold. The nonsaturable loss of this kind of saturable absorber was evaluated to be 3%. To the best of our knowledge, this is the lowest value compared with other carbon nanotube saturable absorbers. By incorporating the saturable absorber into a Yb-doped fiber laser cavity, a mode-locked fiber laser was achieved with a central wavelength of 1054.16 nm. The repetition rate was 23 MHz with a signal-to-noise ratio of 60 dB, and the pulse duration was measured to be 194 ps. The long-term working stability of working is also good. The results indicated that the solution method with a D-shaped fiber possesses a potential for fiber laser stability applications.

Citation Download Citation

Yonggang Wang, Lu Li, Hang Sun, Lina Duan, Xi Wang, and Jinhai Si "Single-walled carbon nanotube solution-based saturable absorbers for mode-locked fiber laser," Optical Engineering 54(8), 086103 (20 August 2015). https://doi.org/10.1117/1.OE.54.8.086103

Published: 20 August 2015

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