Quantum nondemolition measurement with a nonclassical meter input and an electro-optic enhancement
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Andersen, U.; Buchler, Benjamin; Bachor, Hans; Lam, Ping Koy
Description
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]
Collections | ANU Research Publications |
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Date published: | 2002 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/92190 |
Source: | Journal of Optics B: Quantum and Semiclassical Optics |
DOI: | 10.1088/1464-4266/4/3/380 |
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01_Andersen_Quantum_nondemolition_2002.pdf | 351.33 kB | Adobe PDF | Request a copy |
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