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Highly reliable operation has been achieved for transverse-mode stabilized InGaP/InGaAlP multi-quantum-well (MQW) laser diodes with a selectively buried ridge waveguide structure emitting at 663 nm. These MQW laser diodes have been operating for more than 9,000 hours at an output power of 3 mW at 40°C. This achievement is attributed to the low threshold current and the excellent temperature characteristics (the maximum temperature for CW oscillation is 95°C) for such a short wavelength.
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Watanabe et al. (1992) studied this question.
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