Special Section on 2-D Materials for Optics and Photonics

Pulsed erbium-doped fiber laser by a few-layer molybdenum disulfide saturable absorber: from Q-switching to mode-locking

[+] Author Affiliations
Zhi-Chao Luo, Ai-Ping Luo, Wen-Cheng Xu

South China Normal University, School of Information and Optoelectronic Science and Engineering, Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, Waihuan West Road 378, Guangzhou, Guangdong 510006, China

South China Normal University, Specially Functional Fiber Engineering Technology Research Center of Guangdong Higher Education Institutes, Waihuan West Road 378, Guangzhou, Guangdong 510006, China

Fu-Zao Wang, Hao Liu, Meng Liu, Rui Tang

South China Normal University, School of Information and Optoelectronic Science and Engineering, Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, Waihuan West Road 378, Guangzhou, Guangdong 510006, China

Opt. Eng. 55(8), 081308 (Feb 05, 2016). doi:10.1117/1.OE.55.8.081308
History: Received November 18, 2015; Accepted January 11, 2016
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Abstract.  We demonstrated a pulsed erbium-doped fiber laser (EDFL) based on a few-layer molybdenum disulfide saturable absorber (MoS2-SA). The MoS2-SA was fabricated into a film structure by evaporating the mixture of MoS2 nanosheets and polyvinyl alcohol. The Raman spectra and nonlinear optical characteristics were measured to confirm the quality of the as-prepared MoS2-SA. By inserting the MoS2-SA into an EDFL, the pulsed operation from the stable Q-switched to mode-locking regime could be achieved by simply increasing the pump power level. The Q-switched pulse duration and repetition rate could vary from 5.18 to 3.53  μs and from 72.74 to 86.39 kHz, respectively. The maximum pulse energy was 74.93 nJ. After the achievement of Q-switched operation, the ultrashort mode-locking pulse was obtained by further increasing the pump power. The results further demonstrate the excellent saturable absorption ability of the few-layer MoS2 at telecommunication waveband.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Zhi-Chao Luo ; Fu-Zao Wang ; Hao Liu ; Meng Liu ; Rui Tang, et al.
"Pulsed erbium-doped fiber laser by a few-layer molybdenum disulfide saturable absorber: from Q-switching to mode-locking", Opt. Eng. 55(8), 081308 (Feb 05, 2016). ; http://dx.doi.org/10.1117/1.OE.55.8.081308


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