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

TitleA versatile waveguide source of photon pairs for chip-scale quantum information processing
Publication TypeJournal Article
Year of Publication2009
AuthorsJ. Chen, A. J. Pearlman, A. Ling, J. Fan, and A. L. Migdall
JournalOptics Express
Volume17
Pagination6727
Date Publishedapr
ISSN1094-4087
Keywords2009, Nonlinear optics, parametric processes, Quantum information and processing, Waveguides
Abstract

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 KTiOPO4 (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.

URLhttp://www.opticsexpress.org/abstract.cfm?URI=oe-17-8-6727