A new concept is introduced whereby thermal stresses generated through the pumping process are canceled by an applied force. By use of a Nd:YVO<sub>4</sub> disk laser as a model system, significant reduction of thermal lensing and deformation is demonstrated as a function of applied pressure, and the output power (19 W TEM<sub>00</sub>) is limited only by the available pump power.
© 1999 Optical Society of America
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.6810) Lasers and laser optics : Thermal effects
Yan Liao, R. J. Dwayne Miller, and Michael R. Armstrong, "Pressure tuning of thermal lensing for high-power scaling," Opt. Lett. 24, 1343-1345 (1999)