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Passively Q-switched 5-µm Ce3+-doped selenide glass laser using Fe:CdTe and Fe:CdSe as saturable absorbers

P. Fjodorow, M. P. Frolov, Y. V. Korostelin, V. I. Kozlovsky, S. O. Leonov, Y. K. Skasyrsky, B. I. Denker, B. I. Galagan, S. E. Sverchkov, V. V. Koltashev, V. G. Plotnichenko, M. V. Sukhanov, and A. P. Velmuzhov

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Abstract

The first, to the best of our knowledge, mid-infrared Q-switched Ce3+-doped glass laser is demonstrated. As saturable absorbers, Fe2+:CdSe and Fe2+:CdTe are used for the first time. When Q-switched by Fe:CdSe, the laser operates in a multi-pulse regime with an individual pulse width of 110 ns, centered at λ = 5.20 µm. With Fe:CdTe as saturable absorber, 1–3 giant pulses of 30 ns pulse width are generated at λ = 5.13 µm.

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Data underlying the results presented in this Letter are not publicly available at this time but may be obtained from the authors upon reasonable request.

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