NDLI: Characteristics of Correlated Photon Pairs Generated in Ultracompact Silicon Slow-Light Photonic Crystal Waveguides

Content Provider	IEEE Xplore Digital Library
Author	Chunle Xiong Monat, C. Collins, M.J. Tranchant, L. Petiteau, D. Clark, A.S. Grillet, C. Marshall, G.D. Steel, M.J. Juntao Li O'Faolain, L. Krauss, T.F. Eggleton, B.J.
Copyright Year	1995
Abstract	We report the characterization of correlated photon pairs generated in dispersion-engineered silicon slow-light photonic crystal waveguides pumped by picosecond pulses. We found that taking advantage of the 15-nm flat-band slow-light window (vg ~ c/30), the bandwidth for correlated photon-pair generation in 96- and 196-μm-long waveguides was at least 11.2 nm, while a 396-μm-long waveguide reduced the bandwidth to 8 nm (only half of the slow-light bandwidth due to the increased impact of phase matching in a longer waveguide). The key metrics for a photon-pair source: coincidence to accidental ratio (CAR) and pair brightness were measured to be a maximum 33 at a pair generation rate of 0.004 pair per pulse in a 196- μm-long waveguide. Within the measurement errors, the maximum CAR achieved in 96-, 196-, and 396-μm-long waveguides is constant. The noise analysis shows that detector dark counts, leaked pump light, linear and nonlinear losses, multiple pair generation, and detector jitter are the limiting factors to the CAR performance of the sources.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	1676
Ending Page	1683
Page Count	8
File Size	657335
File Format	PDF
ISSN	1077260X
Volume Number	18
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photonics Silicon Bandwidth Arrayed waveguide gratings Detectors Noise slow light Nonlinear optics quantum photonics silicon photonic crystal
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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