Lasers, Fiber Optics, and Communications

Compact watt-level passively Q-switched ZrF4-BaF2-LaF3-AIF3-NaF fiber laser at 2.8 μm using Fe2+:ZnSe saturable absorber mirror

[+] Author Affiliations
Tao Zhang, Guoying Feng, Hong Zhang, Shougui Ning, Bin Lan

Sichuan University, Institute of Laser and Micro/Nano Engineering, College of Electronics and Information Engineering, No. 24 South Section 1, Yihuan Road, Chengdu, Sichuan 610065, China

Shouhuan Zhou

Sichuan University, Institute of Laser and Micro/Nano Engineering, College of Electronics and Information Engineering, No. 24 South Section 1, Yihuan Road, Chengdu, Sichuan 610065, China

North China Research Institute of Electro-Optics, No. 4 Jiuxianqiao Street, Chaoyang District, Beijing 100015, China

Opt. Eng. 55(8), 086106 (Aug 09, 2016). doi:10.1117/1.OE.55.8.086106
History: Received June 23, 2016; Accepted July 22, 2016
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Abstract.  A midinfrared (mid-IR) saturable absorber mirror (SAM) was fabricated by coating aluminum film on Fe2+:ZnSe crystal, based on the vacuum evaporation method. By employing the prepared SAM, we demonstrated a high-power passively Q-switched Er3+-doped ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) fiber laser at 2.8  μm. The highest output power in excess of 1.01 W was obtained with a pulse energy of 11.37  μJ and pulse duration of 0.73  μs, corresponding to a repetition rate of 88.84 kHz. To the best of our knowledge, these values represent the highest output power/pulse energy from a passively Q-switched ZBLAN fiber laser around 2.8  μm. Our results demonstrate that Fe2+:ZnSe SAM is a promising device for high-power/high-energy pulse generation in compact mid-IR fiber lasers.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Tao Zhang ; Guoying Feng ; Hong Zhang ; Shougui Ning ; Bin Lan, et al.
"Compact watt-level passively Q-switched ZrF4-BaF2-LaF3-AIF3-NaF fiber laser at 2.8 μm using Fe2+:ZnSe saturable absorber mirror", Opt. Eng. 55(8), 086106 (Aug 09, 2016). ; http://dx.doi.org/10.1117/1.OE.55.8.086106


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