Efficiency: a laser diode is a single-stage device so it is inherently more efficient than a multistage device.

效率：一个激光二极管是一种单级设备，使其具有内在的效率比多级设备。

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Efficiency: a laser diode is a single-stage device so it is inherently more efficient than a multistage device.

效率：一个激光二极管是一种单级设备，使其具有内在的效率比多级设备。

youdao