In the last article, I have explained the basics of semiconductor. Today I will explain the construction of a semiconductor laser.
Example of semiconductor laser: One of the examples of semiconductor lasers is gallium arsenide (GaAs). It is heavily doped semiconductor. Its n-region is formed by heavily doping with tellurium in a concentration of 3 x 1018 to 5 x 1018 atoms/cm3 while its p-region is formed by doping with zinc in concentration around 1019 atoms/cm3.