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Journal Article

Homodyne detection for atmosphere channels


Toeppel,  F.
Optics Theory Group, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Semenov, A. A., Toeppel, F., Vasylyev, D. Y., Gomonay, H. V., & Vogel, W. (2012). Homodyne detection for atmosphere channels. PHYSICAL REVIEW A, 85(1): 013826. doi:10.1103/PhysRevA.85.013826.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6905-2
We give a systematic theoretical description of homodyne detection in the case where both the signal and the local oscillator pass through the turbulent atmosphere. Imperfect knowledge of the local-oscillator amplitude is effectively included in a noisy density operator, leading to postprocessing noise. Alternatively, we propose a technique with monitored transmission coefficient of the atmosphere, which is free of postprocessing noise.