Fig. 2: Schematic of two practical PA receiver designs. | Communications Physics

Fig. 2: Schematic of two practical PA receiver designs.

From: Quantum illumination networks

Fig. 2

a parallel phase-conjugate receiver (pPCR), (b) serial phase-conjugate receiver (sPCR). Here, “R” and “I” denote the returning and ancilla modes, respectively. Parametric amplifiers are labeled as “PA,” while vacuum inputs are indicated as “vac.” Single-mode quantum measurement process is represented by “PD”.

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