Pump depletion in parametric down-conversion with low pump energies

20 Apr 2020 Flórez Jefferson Lundeen Jeff S. Chekhova Maria V.

We report the efficient generation of high-gain parametric down-conversion, including pump depletion, with pump powers as low as 100 $\mu$W (energies $0.1$~$\mu$J/pulse) and conversion efficiencies up to 33\%. In our simple configuration, the pump beam is tightly focused into a bulk periodically poled lithium niobate crystal placed in free space... (read more)

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