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

Tao Zhang; Guoying Feng; Hong Zhang; Shougui Ning; Bin Lan; Shouhuan Zhou

doi:10.1117/1.OE.55.8.086106

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

Tao Zhang, Guoying Feng, Hong Zhang, Shougui Ning, Bin Lan, Shouhuan Zhou

Author Affiliations +

Optical Engineering, Vol. 55, Issue 8, 086106 (August 2016). https://doi.org/10.1117/1.OE.55.8.086106

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.

Citation Download Citation

Tao Zhang, Guoying Feng, Hong Zhang, Shougui Ning, Bin Lan, and 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

Published: 9 August 2016

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