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Narrow-stripe, V-groove edge-emitting 1.3 ?m LEDs are reported that couple ?15.2 dBm of peak power into a single-mode fibre. Transmission at 180 Mbit/s over 35 km of single-mode fibre is described; this result corresponds to the highest bit rate-distance product (6.3 Gbit km/s) reported to date for an LED source. Accelerated aging results are presented.