A versatile waveguide source of photon pairs for chip-scale quantum information processing | Zendy

Jun Chen | Zendy; Aaron Pearlman | Zendy; Alexander Ling | Zendy; Jingyun Fan | Zendy; Alan L. Migdall | Zendy

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A versatile waveguide source of photon pairs for chip-scale quantum information processing

Author(s) -

Jun Chen,

Aaron Pearlman,

Alexander Ling,

Jingyun Fan,

Alan L. Migdall

Publication year - 2009

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.006727

Subject(s) - spontaneous parametric down conversion , optics , photon , waveguide , optoelectronics , lithium niobate , quantum optics , photon counting , chip , materials science , quantum information processing , bandwidth (computing) , physics , quantum , telecommunications , computer science , quantum entanglement , quantum mechanics

We demonstrate a bright, bandwidth-tunable, quasi-phase-matched single-waveguide source generating photon pairs near 900 nm and 1300 nm. Two-photon coincidence spectra are measured at a range of operating temperatures of a periodically-poled KTiOPO(4) (PPKTP) waveguide, which supports both type-0 and type-II spontaneous parametric down-conversion. We map out relative contributions of two-photon to one-photon fluorescence for a range of operating parameters. Such a versatile device is highly promising for future chip-scale quantum information processing.

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