Abstract
We demonstrate a very high coincidence-to-accidental ratio of 673 using continuous-wave photon-pair generation in a silicon strip waveguide through spontaneous four-wave mixing. This result is obtained by employing on-chip photonic-crystal-based grating couplers for both low-loss fiber-to-chip coupling and on-chip suppression of generated spontaneous Raman scattering noise. We measure a minimum heralded second-order correlation of g(H)((2)) (0) = 0.12, demonstrating that our source operates in the single- photon regime with low noise. (C) 2017 The Japan Society of Applied Physics
Original language | English |
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Article number | 062801 |
Journal | Applied Physics Express |
Volume | 10 |
Issue number | 6 |
Number of pages | 5 |
ISSN | 1882-0778 |
DOIs | |
Publication status | Published - 2017 |