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A 0.98 µm InGaAs/InGaAsP/GaAs strained quantum-well laser with an exponential-shaped-flared stripe has been developed. Its maximum output power is 40 – 60% higher than that of ordinary straight-stripe lasers for the same kink-occurrence output power. Testing at 150 mW showed stable operation with an estimated lifetime of >200000 h.
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Sagawa et al. (1996) studied this question.
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