Good beam quality preservation was achieved in high-power rod based Nd:YAG amplifier-chains by use of radially polarized light. A 150W@M2=3 oscillator probe-beam was amplified by three amplifier stages to 620W with M2<5.
© 2004 Optical Society of America
I. Moshe, S. Jackel, and A. Meir, "Beam quality improvement in thermally birefringent Nd:YAG laser amplifiers by use of radially polarized beams," in Advanced Solid-State Photonics, OSA Technical Digest (Optical Society of America, 2004), paper MB8.
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