High-power laser diodes emitting at 808 nm. 3. Ways to increase the optical output power

This work continues the reviews on the mechanisms limiting the output optical power of semiconductor laser diodes reported in [1, 2]. Here we consider possible ways for improving the optical power. Among them, the most effective ways are the use of large-optical cavity heterostructures, advanced coating of the laser resonator mirrors, and improving the heat sink of the laser diodes. Specific approaches suggested in each of the above directions are discussed in the paper. Assessment of the effectiveness and/or potential of the approaches is given as well.