All-order dispersion cancellation and energy-time entangled state | Zendy

Jinsoo Ryu | Zendy; Ki-Young Cho | Zendy; ChaHwan Oh | Zendy; Hoonsoo Kang | Zendy

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All-order dispersion cancellation and energy-time entangled state

Author(s) -

Jinsoo Ryu,

Ki-Young Cho,

ChaHwan Oh,

Hoonsoo Kang

Publication year - 2017

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.25.001360

Subject(s) - dispersion (optics) , physics , photon , spontaneous parametric down conversion , optics , quantum mechanics , polarization mode dispersion , photon entanglement , order (exchange) , modal dispersion , quantum entanglement , optical fiber , quantum , dispersion shifted fiber , fiber optic sensor , finance , economics

Dispersion cancellation with an energy-time entangled photon pair in Hong-Ou-Mandel (HOM) interference is one phenomenon that reveals the nonclassical nature of the entangled photon pair. This phenomenon has been observed in materials with very weak dispersions. If the higher-order dispersion coefficient is non-negligible, then the experiment must be modified to realize dispersion cancellation. All-order dispersion cancellation using balanced dispersion was suggested by Steinberg. However, the same phenomenon is expected to occur even if a photon pair is not entangled. This behaviour can be explained by path indistinguishability with identical dispersion. To achieve an all-order dispersion experiment that cannot be explained classically, we modified the experiment and performed another all-order dispersion cancellation experiment that cannot be explained by identical dispersion. This is the first demonstration of nonclassical all-order dispersion cancellation.

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