High coincidence-to-accidental ratio continuous-wave photon-pair generation in a grating-coupled silicon strip waveguide
K Guo, EN Christensen, JB Christensen… - Applied Physics …, 2017 - iopscience.iop.org
Applied Physics Express, 2017•iopscience.iop.org
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_
{\text {H}}^{(2)}(0)= 0.12$, demonstrating that our source operates in the single-photon …
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_
{\text {H}}^{(2)}(0)= 0.12$, demonstrating that our source operates in the single-photon …
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 , demonstrating that our source operates in the single-photon regime with low noise.
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