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Using a high-speed InGaAsP/InP LED, 560 Mbit/s signal transmission over 4.4 km has been realised with a large-bandwidth graded-index fibre at 1.3 ?m wavelength and a bit-error rate of 10?9.
High-quality 1.3 μm GaInAsP/InP BH-DFB lasers have been demonstrated. The threshold current was 16 mA and the differential quantum efficiency was 25% per facet. A stable single-longitudinal-mode oscillation was obtained, both up to four times the threshold current and up to 85??C. These results are comparable or superior to reported results of Fabry-Perot BH lasers.
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