Effective cooling of gain media in microchip lasers
Laser gain media generate excessive heat accompanied with laser
oscillation due to the quantum defect in the stokes shift between pump
photons and emitted photons. It is very important to remove excessive
heat from gain media, because this heat causes many kinds of thermal
problems in the laser cavity and degrades cavity conditions. Since
microchip laser gain media have the short distance for heat flow, it is
very easy for microchip laser to remove excessive heat.