We demonstrate phase-sensitive amplification based on coherent population oscillations in metastable helium with a maximum gain of nearly 6. The measured minimum gain corresponds to its ideal value, proving that we have a perfect squeezer © OSA 2016.

Rupamanjari Ghosh

SNU Management

Lugani J.

Banerjee C.

Neveu P.

Maynard M.-A.

Xie W.

Bretenaker F.

Goldfarb F.

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Phase-sensitive amplification using coherent population oscillations in metastable helium