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Testing spectral filters as Gaussian quantum optical channels

MPS-Authors
/persons/resource/persons201112

Laiho,  K.
Silberhorn Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201039

Christ,  A.
Silberhorn Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201029

Cassemiro,  K. N.
Silberhorn Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201196

Silberhorn,  C.
Silberhorn Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Laiho, K., Christ, A., Cassemiro, K. N., & Silberhorn, C. (2011). Testing spectral filters as Gaussian quantum optical channels. OPTICS LETTERS, 36(8), 1476-1478.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-69FF-1
Abstract
We experimentally investigate the mode characteristics of multimode radiation fields propagating through frequency-dependent Gaussian channels. After manipulating the twin beams emitted from a conventional parametric downconversion source via spectral filtering, we study the changes in their mode characteristics, utilizing the joint normalized correlation functions. While filtering reduces the number of spectral modes, it also leads to an apparent mode mismatch, which destroys the perfect photon-number correlation between the twin beams, and influences the mode properties of heralded states. (c) 2011 Optical Society of America