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Noiseless phase quadrature amplification via electro-optic feed-forward

Ben C. Buchler·Elanor H. Huntington·Timothy C. Ralph
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Abstract

Theoretical results are presented which show that noiseless phase quadrature amplification is possible, and limited experimentally only by the efficiency of the phase detection system. Experimental results obtained using a Nd:YAG laser show a signal gain of 10dB and a signal transfer ratio of T_s=0.9. This result easily exceeds the standard quantum limit for signal transfer. The results also explicitly demonstrate the phase sensitive nature of the amplification process.

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Ben C. Buchler, Elanor H. Huntington, Timothy C. Ralph. 1998-12-17. Noiseless phase quadrature amplification via electro-optic feed-forward. https://doi.org/10.1103/physreva.60.529

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