9 August 2016 Compact watt-level passively Q-switched ZrF4-BaF2-LaF3-AIF3-NaF fiber laser at 2.8 μm using Fe2+:ZnSe saturable absorber mirror
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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-AIF3-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.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Tao Zhang, Guoying Feng, Hong Zhang, Shougui Ning, Bin Lan, Shouhuan Zhou, "Compact watt-level passively Q-switched ZrF4-BaF2-LaF3-AIF3-NaF fiber laser at 2.8 μm using Fe2+:ZnSe saturable absorber mirror," Optical Engineering 55(8), 086106 (9 August 2016). https://doi.org/10.1117/1.OE.55.8.086106 . Submission:
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