Abstract
We report the optimisation of a periodically poled lithium niobate (PPLN) optical parametric oscillator (OPO) pumped by a diode-pumped, Q-switched multiaxial TEM00 mode Nd:YAG laser operated at 1064 nm. Total conversion efficiency exceeding 66 % was achieved. This OPO is used in a coherent spectrophotometer for optical component characterisation.
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