Semiconductor Laser Amplifiers
Do you remember diode lasers?
- Let suppose that our diode laser has
no mirrors:
- we get the diode to a
population inversion
condition
- we inject photons at
one end of the diode
By stimulated emission, we
will get an amplification of
our incident signal!
Remember!
By stimulated emission,
one photon gives rise to another photon: the total is
two photons.
Each of these two photons can give rise to another photon: the total is then
four photons.
And it goes on and on...