I read some dwdm mux/demux’s datasheet, it usually has a 3dB filter bandwidth of 0.1 nm , even up to 0.45 nm. When increasing the bandwidth of mux/demux, the system performance increases greatly.
But I’m getting a problem, when I use optical fiber & 2 amplifiers: Boost Amp – BA & Pre Amp – PA, I dont know why calculating optical fiber is extremely slow. I have waited 10 minutes and it has not finished yet. When deleting the BA, it run faster.