Deuterium Stabilized Gas Laser Tube from Japan
Deuterium gas laser tubes provide stable UV output for spectroscopy using gas discharge excitation. The sealed tube contains deuterium at low pressure, classifying as a gas electron tube under HTS 8540.89.0020 despite laser application.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Distinguish from solid-state lasers; provide gas discharge excitation documentation
• Declare optical output wavelength to avoid optical element misclassification
• ITAR/EAR review needed for spectroscopy applications