13 March 2013 Widely tunable MEMS-VCSELs operating at > 70 °C
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A mode hop free single mode tuning < 90nm at 40°C and 45nm at 70°C is demonstrated with a MEMS tunable VCSEL for the first time. The device shows a fiber-coupled output power of 2.9mW at 20°C and 0.5mW at 70°C. The side mode suppression ratio is larger than 40 dB over the entire tuning and temperature range of up to 70°C. The presented technology is cost effective and thus capable for mass production. It is applicable for tuneable VCSELs operating in different wavelength regimes, which are limited by the absorption of the DBR materials only.
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Christian Gierl, Christian Gierl, Tobias Gründl, Tobias Gründl, Karolina Zogal, Karolina Zogal, Sujoy Paul, Sujoy Paul, Christian Grasse, Christian Grasse, Gerhard Böhm, Gerhard Böhm, Peter Meissner, Peter Meissner, Markus-Christian Amann, Markus-Christian Amann, Franko Küppers, Franko Küppers, "Widely tunable MEMS-VCSELs operating at > 70 °C", Proc. SPIE 8639, Vertical-Cavity Surface-Emitting Lasers XVII, 86390G (13 March 2013); doi: 10.1117/12.2004364; https://doi.org/10.1117/12.2004364

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