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A brief introduction to laser diodes
Laser diode (Laser Diodes, LD) is a kind of laser generator. Its working material is semiconductor, which belongs to solid-state laser. Most of the laser diodes are similar in structure to general diodes. Since the laser diode is working, the energy conversion process of electrons only involves two energy levels, and there is no energy loss caused by the indirect band gap, so the efficiency is...
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