{
  "description": "Stable baseline configuration with proper time steps and gain control",
  
  "cavity_parameters": {
    "cavity_length": 0.1,
    "grid_points": 32,
    "base_index": 1.0,
    "temperature": 293.15
  },
  
  "laser_physics": {
    "gain_medium": "Nd:YAG",
    "doping_concentration": 5e24,
    "gain_cross_section_factor": 0.01,
    "laser_wavelength": 1.064e-6,
    "cavity_mode_type": "gaussian",
    "saturation_intensity_factor": 0.01,
    "homogeneous_broadening": true,
    "cross_saturation_factor": 0.95
  },
  
  "pump_parameters": {
    "pump_power": 5e-4,
    "pump_mode": "gaussian",
    "pump_waist": null,
    "pump_efficiency": 0.5
  },
  
  "time_stepping": {
    "propagator_dt": 5e-13,
    "control_period": 1e-9,
    "simulation_time": 100e-9,
    "use_adaptive_step": true,
    "accuracy_order": 4
  },
  
  "output_coupling": {
    "n_couplers": 1,
    "initial_coupler_T": 0.05
  },
  
  "loss_parameters": {
    "mirror_loss": 5e-5,
    "material_absorption": 1e-3,
    "scattering_loss": 1e-4,
    "surface_roughness_loss": 5e-5,
    "diffraction_loss": 1e-5,
    "residual_gas_loss": 5e-6
  },
  
  "control_parameters": {
    "max_dn": 1e-6,
    "fce_horizon": 50,
    "target_mode": "uniform"
  },
  
  "simulation_options": {
    "n_photon_packets": 100,
    "initial_mode": "gaussian",
    "use_photon_packets": false,
    "initial_field_amplification": 100,
    "startup_mode": "enhanced_seed",
    "include_thermal": false,
    "check_conservation": true,
    "energy_tolerance": 0.02,
    "max_power_growth_rate": 1.5
  },
  
  "output_options": {
    "snapshot_interval": 10,
    "checkpoint_interval": 50,
    "report_interval": 5,
    "power_sample_interval": 1e-9
  },
  
  "performance_options": {
    "fast_mode": false,
    "fast_dt_factor": 10,
    "fast_grid_factor": 2
  }
}