Laser diode is also called semiconductor laser, usually referred to as LD. Next, let's look at the performance characteristics and applications of laser diode.

LED and semiconductor laser (or laser LED) work in the same way, that is, when electrons and holes polymerize, light is emitted, and its emission wavelength depends on the material used. The difference is that the spectral range of LED light is relatively narrow,

Before we talk about laser diode, we should first understand stimulated radiation. There are three radiation processes in the light radiation,

In order to enable the laser diode to work stably and efficiently, and to play its role in the widest range of daily life, the laser diode operator should pay attention to some matters during the operation.

Lasers are divided into four safety levels. Different levels cause different hazards to the human body, and the protection standards for lasers are also different.

I think everyone is silly and confused about LED and LD.