Quantum nondemolition measurement with a nonclassical meter input and an electro-optic enhancement
Optical quantum nondemolition measurements are performed using a beamsplitter with a nonclassical meter input and a electro-optic feedforward loop. The nonclassical meter input is provided by a stable 4.5 dB amplitude squeezed source generated by an optical parametric amplifier. We show that the implementation of a feedforward loop gives a substantial improvement in the signal transfer efficiency. With a 92% reflective beamsplitter we measure a transfer coefficient of Ts+m = 1.81. The quantum...[Show more]
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|Source:||Journal of Optics B: Quantum and Semiclassical Optics|
|01_Andersen_Quantum_nondemolition_2002.pdf||351.33 kB||Adobe PDF||Request a copy|
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