Abstract
We present a comparison between two kinds of single-frequency Sb-based semiconductor VCSELs operating at 2.3 μm in continuous-wave regime at room temperature. These lasers are studied in view of application to spectroscopy or trace gas detection. Both are based on a molecular beam epitaxy grown half-VCSEL. In the first configuration, a dielectric mirror is deposited on top to form a microcavity, while in the second a concave mirror is used to form an external cavity. The external cavity VCSEL exhibits 5-mW output power, a narrow linewidth (<<20 kHz), and 50-GHz continuous frequency tunability. © 2005 IEEE.
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Ouvrard, A., Garnache, A., Cerutti, L., Genty, F., & Romanini, D. (2005). Single-frequency tunable Sb-based VCSELs emitting at 2.3 μm. IEEE Photonics Technology Letters, 17(10), 2020–2022. https://doi.org/10.1109/LPT.2005.856341
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