{
    "simulation": {
        "time": 10.0,
        "time_step": 0.001,
        "num_points": 1000,
        "save_results": true,
        "output_directory": "./results/"
    },

    "cavity": {
        "length": 0.5,
        "description": "Optical cavity length in meters",
        "configurations": {
            "compact": {
                "length": 0.1,
                "description": "Compact cavity for high FSR"
            },
            "standard": {
                "length": 0.5,
                "description": "Standard laboratory cavity"
            },
            "extended": {
                "length": 1.0,
                "description": "Extended cavity for high finesse"
            }
        }
    },

    "laser": {
        "wavelength": 450e-9,
        "input_power": 20.0,
        "beam_waist": 1e-3,
        "divergence_angle": 1e-3,
        "quantum_efficiency": 0.85,
        "mode_quality_M2": 1.1,
        "presets": {
            "blue_diode": {
                "wavelength": 450e-9,
                "power": 20.0,
                "description": "Standard blue laser diode"
            },
            "green_dpss": {
                "wavelength": 532e-9,
                "power": 50.0,
                "description": "Diode-pumped solid-state green"
            },
            "red_hene": {
                "wavelength": 633e-9,
                "power": 5.0,
                "description": "Helium-Neon red laser"
            },
            "nir_fiber": {
                "wavelength": 1064e-9,
                "power": 100.0,
                "description": "Near-IR fiber laser"
            }
        }
    },

    "materials": {
        "core": {
            "refractive_index": 1.45,
            "absorption_coefficient": 1e-5,
            "thermal_conductivity": 1.38,
            "heat_capacity": 703,
            "density": 2200,
            "damage_threshold": 1e10,
            "breakdown_field": 1e9,
            "material_options": {
                "fused_silica": {
                    "n": 1.45,
                    "absorption": 1e-5,
                    "description": "Standard optical glass"
                },
                "bk7": {
                    "n": 1.52,
                    "absorption": 2e-5,
                    "description": "Common optical glass"
                },
                "sapphire": {
                    "n": 1.77,
                    "absorption": 5e-6,
                    "description": "High durability crystal"
                },
                "diamond": {
                    "n": 2.42,
                    "absorption": 1e-6,
                    "description": "Ultimate thermal conductor"
                }
            }
        },
        "mirrors": {
            "high_reflector": 0.999,
            "output_coupler": 0.95,
            "coating_options": {
                "standard": {
                    "R1": 0.99,
                    "R2": 0.95,
                    "description": "Standard dielectric coating"
                },
                "high_finesse": {
                    "R1": 0.999,
                    "R2": 0.98,
                    "description": "Ultra-high finesse cavity"
                },
                "super_cavity": {
                    "R1": 0.9999,
                    "R2": 0.999,
                    "description": "Supercavity configuration"
                }
            }
        }
    },

    "fractal_control": {
        "lorenz_parameters": {
            "sigma": 10.0,
            "rho": 28.0,
            "beta": 2.666667,
            "description": "Standard Lorenz attractor parameters"
        },
        "pid_gains": {
            "kp": 2.0,
            "ki": 0.5,
            "kd": 0.1,
            "description": "PID controller gains"
        },
        "blend_ratio": {
            "pid_weight": 0.7,
            "fractal_weight": 0.3,
            "adaptive": true,
            "description": "Control signal blending"
        },
        "stability_threshold": 0.001,
        "max_correction": 0.1
    },

    "photonic_bandgap": {
        "enabled": true,
        "layers": 20,
        "n_high": 2.5,
        "n_low": 1.5,
        "modulation_depth": 0.05,
        "modulation_frequency": 0.1,
        "description": "1D photonic crystal parameters"
    },

    "safety": {
        "temperature_limit": 600,
        "field_breakdown": 1e9,
        "power_instability_threshold": 0.3,
        "safety_margin": 0.8,
        "emergency_shutdown": true,
        "monitoring": {
            "thermal": true,
            "electrical": true,
            "mechanical": true,
            "coherence": true
        }
    },

    "energy_recycling": {
        "base_recovery": 0.04,
        "amplifier_gain": 0.03,
        "oscillator_rate": 0.03,
        "efficiency_target": 0.7,
        "optimization": {
            "method": "gradient",
            "iterations": 100,
            "tolerance": 1e-6
        }
    },

    "visualization": {
        "real_time_plot": true,
        "update_interval": 50,
        "plot_elements": {
            "field_distribution": true,
            "energy_balance": true,
            "phase_portrait": true,
            "lyapunov_exponent": true,
            "temperature": true,
            "beam_quality": true
        },
        "color_scheme": {
            "field": "viridis",
            "energy": "plasma",
            "temperature": "coolwarm"
        },
        "save_plots": true,
        "dpi": 150
    },

    "analysis": {
        "compute_metrics": true,
        "metrics": [
            "efficiency",
            "beam_quality",
            "phase_coherence",
            "lyapunov_exponent",
            "energy_balance"
        ],
        "comparison_methods": [
            "pid",
            "kalman",
            "mpc",
            "fractal"
        ],
        "statistical_analysis": true,
        "export_format": "json"
    },

    "experimental_scenarios": {
        "high_power": {
            "description": "High power operation test",
            "laser_power": 100.0,
            "cavity_length": 1.0,
            "safety_enhanced": true
        },
        "ultrafast": {
            "description": "Femtosecond pulse simulation",
            "pulse_duration": 1e-13,
            "repetition_rate": 80e6,
            "dispersion_compensation": true
        },
        "quantum": {
            "description": "Quantum regime simulation",
            "photon_counting": true,
            "squeezed_states": false,
            "entanglement": false
        },
        "chaos_control": {
            "description": "Chaos suppression demonstration",
            "initial_chaos": true,
            "fractal_strength": 0.8,
            "target_stability": 0.99
        }
    },

    "optimization_targets": {
        "maximize_efficiency": {
            "target": "efficiency",
            "constraint": "temperature < 500",
            "method": "differential_evolution"
        },
        "minimize_chaos": {
            "target": "lyapunov_exponent",
            "constraint": "power > 10",
            "method": "basin_hopping"
        },
        "optimize_coherence": {
            "target": "phase_coherence",
            "constraint": "efficiency > 0.5",
            "method": "nelder_mead"
        }
    }
}