Quasi-continuous-wave birefringence-compensated single-and double-rod Nd:YAG

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Applied Optics, Volume 41, Issue 36, 7573-7582 December 2002

Quasi-continuous-wave birefringence-compensated single- and double-rod Nd:YAG lasers

Martin Ostermeyer, Guido Klemz, Philipp Kubina, Ralf Menzel

Keywords (OCIS):

(140.3410) Lasers and laser optics : Laser resonators (140.3580) Lasers and laser optics : Lasers, solid-state (140.6810) Lasers and laser optics : Thermal effects

ABSTRACT

Compensation of thermally induced birefringence directed toward compensation of depolarization and bifocusing in laser rods is treated with simple beam transfer matrices. When we apply a 90-deg polarization-rotating element to a resonator, the radial and the tangential eigensolutions of the resonator change significantly. The effect of this alteration on the resonator ’s stability is investigated in detail. The outcome is used to design a single- and double-rod resonator resulting in 53 W with an M2 ~ 1.5 and 182 W of output power with an M2 ~ 1.2, respectively. [Optical Society of America ]

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