218 W quasi-CW output power has heen measured from a 1.83 µm InGaAsP/InP 90 element rack and stack configuration array. Despite strong dependence of the device efficiency on temperature, a CW output power of 54 W has been obtained. The maximum efficiency for CW operation was 18% for 30 W CW output power.
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Maiorov et al. (1999) studied this question.
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