Spectral polarization and spectral phase control of time-energy entangled photons

2006/04/30 by Barak Dayan, Yaron Bromberg, Itai Afek +2
Computer Science · Physics and Astronomy · #Orbital Angular Momentum in Optics #Quantum Information and Cryptography #Quantum optics and atomic interactions #quant-ph

paper · pdf · doi:10.1103/physreva.75.043804

published as Phys. Rev. A. 75, 043804 (2007) · 5 pages, 3 figures

openalex publication_date 2007/04/04 · arxiv created 2007/04/05 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We demonstrate a scheme to spectrally manipulate a collinear, continuous stream of time and energy entangled photons to generate beamlike, bandwidth-limited fluxes of polarization-entangled photons with nearly degenerate wavelengths. Utilizing an ultrashort-pulse shaper to control the spectral phase and polarization of the photon pairs, we tailor the shape of the Hong-Ou-Mandel interference pattern, demonstrating the rules that govern the dependence of this interference pattern on the spectral phases of the photons. We then use the pulse shaper to generate all four polarization Bell states. The singlet state generated by this scheme forms a very robust decoherence-free subspace, extremely suitable for long-distance fiber-optics-based quantum communication.

Citations

• Femtosecond pulse shaping using spatial light modulators
• High-efficiency entangled photon pair collection in type-II parametric fluorescence
• Quantum Cryptography with Entangled Photons
• New High-Intensity Source of Polarization-Entangled Photon Pairs
• Experimental Demonstration of Entanglement-Enhanced Classical Communication over a Quantum Channel with Correlated Noise
• Nonlinear Interactions with an Ultrahigh Flux of Broadband Entangled Photons
• Recurrent fourth-order interference dips and peaks with a comblike two-photon entangled state
• Ultra-bright source of polarization-entangled photons