{
  "description": "Realistic photon loop reactor configuration with thermal effects and dispersion",
  
  "cavity_parameters": {
    "cavity_length": 1.0,
    "grid_points": 128,
    "wavelength": 1.064e-6,
    "base_index": 1.0,
    "temperature": 293.15,
    "material": "fused_silica"
  },
  
  "photon_parameters": {
    "n_photon_packets": 500,
    "initial_mode": "gaussian",
    "initial_energy": 1e-6,
    "use_photon_packets": false
  },
  
  "propagation_parameters": {
    "propagator_dt": 1e-15,
    "use_adaptive_step": true,
    "accuracy_order": 4,
    "include_dispersion": true,
    "include_nonlinearity": true
  },
  
  "control_parameters": {
    "control_period": 5e-9,
    "fce_horizon": 1000,
    "max_dn": 1e-5,
    "target_mode": "uniform",
    "n_couplers": 1,
    "initial_coupler_T": 1e-4,
    "enable_adaptive_horizon": true,
    "enable_adaptive_gain": true
  },
  
  "thermal_parameters": {
    "include_thermal": true,
    "thermal_boundary_conditions": "convective",
    "convection_coefficient": 10.0,
    "ambient_temperature": 293.15,
    "thermal_update_interval": 100
  },
  
  "material_parameters": {
    "material_name": "fused_silica",
    "enable_kerr_effect": true,
    "enable_thermal_lensing": true,
    "damage_monitoring": true,
    "custom_absorption": null
  },
  
  "simulation_parameters": {
    "simulation_time": 1e-6,
    "power_sample_interval": 1e-9,
    "enable_checkpointing": true,
    "checkpoint_interval": 1000,
    "snapshot_interval": 100,
    "report_interval": 50
  },
  
  "output_parameters": {
    "save_field_snapshots": true,
    "save_thermal_data": true,
    "save_control_sequence": true,
    "compression_level": 4,
    "data_buffer_size": 100
  },
  
  "optimization_targets": {
    "target_power_enhancement": 20.0,
    "target_efficiency": 0.8,
    "max_temperature_rise": 50.0,
    "stability_tolerance": 0.01
  }
}