28 Gb/S 850 Nm Oxide Vcsel Development At Avago
VERTICAL-CAVITY SURFACE-EMITTING LASERS XVII(2013)
摘要
Avago's 850nm oxide VCSEL for applications requiring modulation at 25-28G has been designed for -3dB bandwidths in excess of 18GHz over an extended temperature range of 0-85C. The VCSEL has been optimized to minimize DBR mirror thermal resistivity, electrical resistance and optical losses from free carrier absorption. The active region is designed for superior differential gain to enable high optical bandwidths. The small-signal modulation response has been characterized and the large-signal eye diagrams show excellent high-speed performance. Characterization data on other link parameters such as relative intensity noise and spectral width will also be presented.
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关键词
vertical cavity surface emitting laser,850 nm oxide VCSEL,high speed modulation,data communications,small signal modulation,reliability,eye diagram
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