Lasers, Fiber Optics, and Communications

Bi2Se3 as a saturable absorber for ultrafast photonic applications of Yb-doped fiber lasers

[+] Author Affiliations
Kexuan Li

Beijing University of Technology, Institute of Information Photonics Technology and College of Applied Sciences, 100th, Pingleyuan Road, Chaoyang District, Beijing, 100124, China

Chinese People’s Armed Police Force Academy, Department of Physics, 220th, Xichang Road, Anci District, Langfang, 065000, China

Jinrong Tian, Yanrong Song, Jinghui Liu, Heyang Guoyu, Runqin Xu, Meng Wang, Xiaohui Fang

Beijing University of Technology, Institute of Information Photonics Technology and College of Applied Sciences, 100th, Pingleyuan Road, Chaoyang District, Beijing, 100124, China

Opt. Eng. 55(3), 036110 (Mar 28, 2016). doi:10.1117/1.OE.55.3.036110
History: Received December 31, 2015; Accepted March 4, 2016
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Abstract.  We experimentally demonstrated a Q-switched mode-locked (QML) and a continuous-wave mode-locked (CWML) ytterbium-doped fiber lasers with topological insulator: Bi2Se3 as saturable absorber (SA) in all normal dispersion regime. The Bi2Se3-SA is conventionally composited by embedding Bi2Se3 nanoplatelets into polyvinyl alcohol thin film, which provides a modulation depth of 7.6% and a saturation intensity of 38.9  MW/cm2. Based on this SA, with different cavity length, ytterbium-doped fiber laser can be operated at QML and CWML state, respectively. In the QML operation, a Q-switched envelope has the shortest pulse width of 1.12  μs and the tunable repetition rate from 96 to 175 kHz. The largest pulse envelope energy is 39.6 nJ, corresponding to average output power of 6.93 mW. In the CWML operation, an environmentally stable dissipative soliton laser pulse with pulse duration of 210  ps is obtained. The single pulse energy is 0.83 nJ with the repetition rate of 11.38 MHz at the wavelength of 1037 nm.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Kexuan Li ; Jinrong Tian ; Yanrong Song ; Jinghui Liu ; Heyang Guoyu, et al.
"Bi2Se3 as a saturable absorber for ultrafast photonic applications of Yb-doped fiber lasers", Opt. Eng. 55(3), 036110 (Mar 28, 2016). ; http://dx.doi.org/10.1117/1.OE.55.3.036110


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