The excitation of semiconductor lasers occurs through three main modes: electrical injection, electron beam excitation, and optical pump excitation. These modes enable the efficient generation of excited emission and play a crucial role in the functioning of semiconductor lasers.
Types of Semiconductor Lasers
Semiconductor lasers are generally classified into three categories https://rik88.bet/
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Applications of Semiconductor Lasers
Thanks to their exceptional properties, semiconductor lasers have found extensive applications in numerous fields, including:
Laser communication
Optical storage
lOptical gyroscope
Laser printing
Laser medicine
Laser ranging
LIDAR
Automatic control
Detection instruments
Working Principle of Semiconductor Lasers
The working principle of a semiconductor laser relies on achieving particle number inversion of non-equilibrium carriers between the energy bands of semiconductor materials or between the energy bands of semiconductor materials and impurity energy levels. This inversion state leads to excited emission when a significant number of electrons combine with holes.