Abstract
A 1.3-μm-range uncooled electroabsorption/distributed-feedback (EA/DFB) laser was demonstrated. Incorporating an InGaAlAs multiple quantum well (MQW) modulator, a low-capacitance structure, and butt-joint integration, this laser successfully demonstrated 43-Gb/s 10-km transmission for the first time. The developed laser achieved clearly opened eye diagrams with dynamic extinction ratio of over 7 dB over a wide temperature range (25 °C to 85 °C).
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