We report on a novel heat sink for high-power laser diodes offering unparalleled capacity in high-heat flux
handling and temperature control. The heat sink uses a liquid coolant flowing at high speed in a miniature closed
and sealed loop. Diode waste heat is received at high flux and transferred to environment, coolant fluid, heat pipe,
or structure at a reduced flux. When pumping solid-state or alkali vapor lasers, diode wavelength can be
electronically tuned to the absorption features of the laser gain medium. This paper presents the heat sink
physics, engineering design, performance modeling, and configurations.
John Vetrovec, John Vetrovec,
"Quasi-passive heat sink for high-power laser diodes", Proc. SPIE 7198, High-Power Diode Laser Technology and Applications VII, 71980D (23 February 2009); doi: 10.1117/12.808658; https://doi.org/10.1117/12.808658