20 February 2013 25 Gbps and beyond: VCSEL development at Philips
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Abstract
In comparison to widely used InGaAs Quantum Wells (QW) in high speed VCSELs operating at 25 Gbps and beyond, we present an investigation on the use of GaAs QWs, which have proven their ability to serve reliably in 10 Gbps and 14 Gbps VCSEL products and allow for an evolutionary extension of data rates based on mature technology. As data centers continuously increase in size, the demand for longer reach optical links within these data centers is addressed by the proposal of using small spectral width single-mode VCSELs that offer the potential of significantly reduced chromatic dispersion along optical fibers of several 100 m length. Performance and modeling parameters of single-mode VCSELs are being compared to those of typical multi-mode VCSELs built from identical epitaxy and process technology.
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Martin Grabherr, Martin Grabherr, Steffan Intemann, Steffan Intemann, Stefan Wabra, Stefan Wabra, Philipp Gerlach, Philipp Gerlach, Michael Riedl, Michael Riedl, Roger King, Roger King, } "25 Gbps and beyond: VCSEL development at Philips", Proc. SPIE 8639, Vertical-Cavity Surface-Emitting Lasers XVII, 86390J (20 February 2013); doi: 10.1117/12.2002029; https://doi.org/10.1117/12.2002029
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