A laser beam generated by a set of semi-conductors is also known as a 10 x 0.6 x 0.1-mm laser diode array placed at the end of a cooling channel.
Current scientific expertise helps obtain power on the order of 30 to 50 W. By stacking these bars, the beam power is then combined through optical superposition of several beams. This combination is called a "stack" of diodes. By combining these stacks, the power can reach up to 6000 W. The wavelength range varies from 800 to 980nm.
Emission from a PN junction (about 5 MW)
Laser bar (about 3 W)
Assembly on cooling micropipes (about 30 W)
Beam correction by microlens
Stack of bars and micropipes
Courtesy of IREPA LASER
