论文信息 - 4W high performance 1470 nm InGaAsAs lasers

4W high performance 1470 nm InGaAsAs lasers

We report on our design and fabrication of 1470 nm high power InGaAlAs quantum well lasers. It is found that the 2-mm-long-cavity devices with aperture size of 96 μm can reach maximum power of around 4.2 W. The threshold is around 500 mA, and slope efficiency is about 0.42 W/A. Apart from the excellent external quantum efficiency and thermal performance, devices also show reduced beam divergence which is about 30°. Accelerated life-time test has also been performed to determine the reliability performance. Thus far more than 9000 life-test-hour has been accumulated, and there is no detectable sign of the power degradation, indicating our devices are extremely reliable.

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