Mode overlap and insertion loss as a function of the post-selection angle.
Mode overlap ρ of the mode functions corresponding to the quantum states with τ = 0 and τ = 100 as, as a function of the post-selection angle θ (solid blue line). The insertion loss, given by is indicated by the dotted green line. The minimum mode overlap and maximum insertion loss, corresponds to the post-selection angle θ that fulfils the condition ω0τ − Γ = π, which corresponds to θ = 97.2°. Data: λ0 = 1.5 μm, T0 = 100 fs.