Haken laser / Lorenz–Haken — dE/dt=σ(P−E), dP/dt=−P+E·D, dD/dt=−b(D−r+E·P). Field E, polarization P, inversion D. Classic σ=10 b=8/3 r=28 (optical Lorenz isomorphism). Distinct from lorenz.html chrome. RK4 strange attractor. Gold low-alpha trail, cap 650. RM = settled silhouette, no animate-on.