Experimental setup of the ¹⁷¹Yb optical lattice clock. The ¹⁷¹Yb atoms from the heated oven pass through the two-dimensional (2D) collimation, Zeeman slower system, and finally enter into the magneto–optical trap (MOT) area. The atomic oven is heated to 673.15 K (400 °C) during the operation, and both the Zeeman slower and MOT chamber are exposed to the room temperature.