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10 Gbit/s 1.55μ 25km transmission at 90°c with new self thermally compensated AlGaInAs directly modulated laser

25 March 2007

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Large positive detuning is used for self thermal compensation of threshold and power variation in AlGalnAs DFB. 25 km uncompensated and non-amplified SMF transmissions are demonstrated at a constant bias current from 20°C to 90°C.