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7 February 2007 New markets for VCSELS: pulsed operation of high-power devices
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Driving basic VCSEL technology in the '90, datacom has been the first volume market for various VCSEL products. The downturn in 2001 can be regarded as a point in time, when engineers both from VCSEL manufacturers and nondatacom users started to identify VCSEL technology as a very promising laser source platform for many other applications. Dedicated spectroscopy laser sources based on VCSEL technology, e.g. for oxygen sensing [1], have proven their competitiveness in industrial applications. The most prosepective consumer market of human-machineinterfaces like laser mice has shown the huge potential of the VCSEL technology in low costs, high volume applications, even given extreme technical performance specifications [2]. Just as a consequence, VCSELs are now penetrating into the next potential volume markets, where unique properties of this technology is requested: High power pulsed laser applications, where low cost is a key factor for market entry. In this paper we discuss a suitable semiconductor technology platform, assembly solutions, selected applications and their market potential as well as performance and reliability data. From small footprint of 0.3 mm2 and 0.11 mm2 peak output powers of 0.7 W and more than 6 W at 850 nm wavelength are shown at 30 &mgr;s and 30 ns pulse widths, respectively.
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Martin Grabherr, Michael Miller, Dieter Wiedenmann, Roland Jäger, and Roger King "New markets for VCSELS: pulsed operation of high-power devices", Proc. SPIE 6484, Vertical-Cavity Surface-Emitting Lasers XI, 648407 (7 February 2007);

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