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10 June 2024 Comparing the diode-pumped ~3.0 µm laser potential of different Rare-Earth doped chalcogenide glasses
Zackery D. Fleischman, Ei Ei Brown, Mark Dubinskii, Larry Merkle, Jason McKay, Uwe Hommerich, Sudhir Trivedi, Witold Palosz
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Proceedings Volume PC13029, Laser Technology for Defense and Security XIX; PC1302909 (2024) https://doi.org/10.1117/12.3014549
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States
Abstract
With the goal of developing new mid-IR lasers, Rare Earth doped low-phonon sulfide-based chalcogenide glasses are being explored for their potential as sources emitting at ~3-microns. Such low phonon energy materials are necessary to minimize competing non-radiative decay processes such as multi-phonon relaxation (MPR). This work presents the results of a comprehensive spectroscopic study comparing the 3-micron laser potential of three different RE ions (Dy3+, Ho3+, and Er3+) doped into sulfide-based chalcogenide glass. Spectroscopic results will focus on absorption, fluorescence, and decay characteristics. From these measurements, laser relevant parameters such as cross sections and radiative lifetimes are calculated.
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Zackery D. Fleischman, Ei Ei Brown, Mark Dubinskii, Larry Merkle, Jason McKay, Uwe Hommerich, Sudhir Trivedi, and Witold Palosz "Comparing the diode-pumped ~3.0 µm laser potential of different Rare-Earth doped chalcogenide glasses", Proc. SPIE PC13029, Laser Technology for Defense and Security XIX, PC1302909 (10 June 2024); https://doi.org/10.1117/12.3014549
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KEYWORDS
Chalcogenide glass
Mid-IR
Semiconductor lasers
Phonons
Spectroscopy
Fluorescence spectroscopy
Ions
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