Continuous position measurement of a mirror using light and the filtering process (IMAGE)

Kyushu University

Continuous position measurement of a mirror using light and the filtering process

Caption

Laser light is injected into an optical cavity to continuously measure the position of a movable mirror. The output light is read out by homodyne detection, and the measurement data are analyzed using optimal filtering to estimate the quantum state of the mirror with high precision.

Credit

Kazuhiro Yamamoto / Kyushu University

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