Fig. 3.
Switching loss versus multiplexed modes M for the S-MUX, T-MUX, and F-MUX strategies. The total loss (1 − transmittance) is plotted to emphasize small performance differences in the high-efficiency regime. The values of the single-switch transmittance μs are based on reported performances of demonstrated MUX-HSPSs (solid) and potential near-term improvements (dashed). For the T-MUX schemes, the heralding probability per pulse is set to p = 0.08, which is derived from a mean photon number μ = 0.1 for the TMSV state and a detector efficiency of μd = 0.95. The potential improvement of the T-MUX scheme is estimated from off-the-shelf, high-quality anti-reflection coatings on EO crystals