Antimonide high-power semiconductor laser diodes emitting at 2μm have broad prospects in many fields, such as tunable diode laser absorption spectroscopy. However, power is an important indicator for the application of antimonide semiconductor laser diodes. In this paper, we reported the high-power antimony laser diodes emitting around 2μm achieved in our group. The maximum optical power is 1.001W with injected current 3.04A at working temperature 20℃.
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