For laser diodes, unlike ordinary transistors and integrated circuits, it is necessary to pay special attention to the following points when handled.

(1) Eye protection against laser beams
(2) Gallium arsenide
(3) Electrical stress
(4) Contamination (dust and dirt)
(5) Mechanical stress
(6) Thermal stress
(7) Condensation

All these precautions are collectively described below.
When handling a laser diode, read through the precautions and use the laser diode safely in the correct way.