LaserWavelengthAndPowerStabilityChecker

Utility description: Laser Wavelength & Power Stability Checker

Laser Wavelength & Power Stability Checker — Laser Wavelength and Power Stability Analyzer

ℹ️  Utility controls laser parameters for optical pumping:
    • Wavelength accuracy (atomic transition match)
    • Power stability (noise absence)
    • Thermal drift

⚠️  CRITICAL: Wavelength shift of just 0.1 nm drastically reduces efficiency!
    Lasers must be precisely tuned to Rubidium D1 absorption line.

Usage:
  LaserWavelengthAndPowerStabilityChecker.exe                            → demo mode (console output)
  LaserWavelengthAndPowerStabilityChecker.exe input.csv output.json      → evaluate your data

Input format:
BatchNumber,ProductName,Center_Wavelength_nm,Target_Wavelength_nm,Output_Power_W,Target_Power_W,Wavelength_Drift_nm,Power_Fluctuation_Percent,Max_Drift_nm,Max_Fluct_Percent

Example:
  LASER-2026-001,Rb-D1 Array,794.72,794.70,100.5,100.0,0.05,1.2,0.1,2.0

— WHY IS THIS NEEDED?
Laser control is critical for SEOP (Spin-Exchange Optical Pumping) process:
• Xenon polarization occurs via spin transfer from optically pumped rubidium
• Laser must be precisely tuned to rubidium D1 transition resonant frequency (~794.7 nm)
• Any wavelength deviation (drift) leads to exponential drop in pumping efficiency
• Power fluctuations create noise in gas polarization level
• Diode overheating causes irreversible degradation and spectrum shift

⚠️  CRITICAL:
• Wavelength accuracy ≤0.1 nm from target peak
• Power stability ≤2% (RMS)
• Diode temperature control (TEC) to prevent drift
• Regular spectrometer calibration

Key features:
• Wavelength match monitoring to atomic transition
• Output power stability analysis over time
• Thermal drift and diode degradation detection
• Support for multi-diode arrays (stacks)

Critical parameters:
• Wavelength Error: ≤0.1 nm
• Power Fluctuation: ≤2%
• Wavelength Drift: ≤0.1 nm

💡 Usage tips:
1. Use Fiber Bragg Gratings (FBG) for wavelength stabilization
2. Control laser housing temperature with 0.1°C precision
3. Perform laser warm-up for at least 30 minutes before polarization start
4. Monitor output power degradation as diode aging indicator
5. Use power feedback loop to compensate for aging

⚠️ Note: Unlike standard medical lasers, here not only power matters, but its spectral match with narrow atom absorption line. Error in nanometers makes entire setup useless. The utility ensures this precision control.