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; A P Velmuzhov

doi:10.1364/OL.447906

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

Opt Lett. 2022 Jan 15;47(2):309-312. doi: 10.1364/OL.447906.

Authors

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, A P Velmuzhov

PMID: 35030594
DOI: 10.1364/OL.447906

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.