Abdelrahman E. Afifi, Mustafa Hammood, N. Jaeger, S. Shekhar, Jeff F. Young, L. Chrostowski
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Contra-Directional Couplers as Pump Rejection and Recycling Filters for on-Chip Photon-Pair Sources
Contra-directional couplers are proposed as optical pump reject filters with the potential to achieve over 100 dB extinction ratios for on chip photon-pair sources. A scheme for these filters to enable reusing the pump laser for multiple microring resonator, photon-pair sources is presented.