🔌 Subsea Repeater Chain: OSNR, Launch Power Optimum and Error Rate (2D)

Power diagram of a submarine fibre route: the signal falls by the span loss and each optical repeater restores it while adding noise that builds up along the chain. Set the number and length of spans, the fibre loss, the amplifier noise figure, the launch power and the nonlinear coefficient, and see the optical signal-to-noise ratio, the optimum launch power, the bit error rate and how far the route can reach. Noise accumulation, the optimum, the error-rate integral and the reach are checked numerically, with four in-page numerical checks.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install