Journal
OPTICS EXPRESS
Volume 14, Issue 25, Pages 12302-12309Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.14.012302
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We propose a novel tuneable table-top optical source as an alternative to the free electron laser currently used for resonant infrared pulsed laser deposition of polymers. It is based on two-stage pulsed optical parametric amplification using MgO doped periodically poled lithium niobate crystals. Gain in excess of 106 in the first stage and pump depletion of 58% in the second stage were achieved when the system was pumped by a high-power Nd:YVO4 picosecond laser source at 1064 nm and seeded by a CW tuneable diode laser at 1530 nm. An average power of 2 W was generated at 3.5 mu m corresponding to 1.3 mu J pulse energy. (c) 2006 Optical Society of America
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