{
  "spectrum": [
    {
      "f_min": 191.4e12,
      "f_max": 193.1e12,
      "baud_rate": 32e9,
      "slot_width": 50e9,
      "delta_pdb": 0,
      "roll_off": 0.15,
      "tx_osnr": 40,
      "label": "mode_1"
    },
    {
      "f_min": 193.1625e12,
      "f_max": 195e12,
      "baud_rate": 64e9,
      "slot_width": 75e9,
      "roll_off": 0.15,
      "tx_osnr": 40,
      "label": "mode_2"
    }
  ]
}