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Highly Efficient Single-Pass Source of Pulsed Single-Mode Twin Beams of Light

MPS-Authors
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Eckstein,  Andreas
Silberhorn Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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

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

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

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Citation

Eckstein, A., Christ, A., Mosley, P. J., & Silberhorn, C. (2011). Highly Efficient Single-Pass Source of Pulsed Single-Mode Twin Beams of Light. PHYSICAL REVIEW LETTERS, 106(1): 013603. doi:10.1103/PhysRevLett.106.013603.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-6A37-8
Abstract
We report the realization of a bright ultrafast type II parametric down-conversion source of twin beams free of any spatiotemporal correlations in a periodically poled KTiOPO(4) (PP-KTP) waveguide. From a robust, single-pass setup it emits pulsed two-mode squeezed vacuum states: photon-number entangled pairs of single-mode pulses or, in terms of continuous variables quantum optics, pulsed Einstein-Podolsky-Rosen states in the telecom wavelength regime. We verify the single-mode character of our source by measuring Glauber correlation functions g((2)) and demonstrate with a pump energy as low as 75 pJ per pump pulse a mean photon number of 2.5.