Skip to main content
EPJ Quantum Technology
Figure 3 | EPJ Quantum Technology

Figure 3

From: Polarization compensation method based on the wave plate group in phase mismatch for free-space quantum key distribution

Figure 3

Experimental setup. (a) Experimental setup for robustness validation. (b) Experimental setup for the polarization compensation experiment based on the BB84 protocol. L: laser source; P, linear polarizer; QWP, 1/4 wave plate; HWP,1/2 wave plate; R1, R2, phase-mismatched 1/4 wave plates; PD, power detector; BS, beam splitter; PBS, polarization beam splitter; CL, collimator

Back to article page