Bridge should allow you to have the laser on one subnet while your primary network is on another subnet. This is true for more typical Ruida controllers as well since default IP for those are 10.0.3.3 with a subnet mask of 255.255.255.0. Most home or small office homes are not on a 10.0.3.xxx network.
Based on this other Topic it looks like default IP of Polar is 192.168.1.100.