Raman Amplifier Fiber from Japan
Germanium-doped single-mode optical fiber optimized for Raman amplification in long-haul communication networks, providing distributed gain for voice, data, and video signals across C-band wavelengths. High Raman gain coefficient design. Classifies under HTS 9001.10.0030.
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
• Include Raman gain coefficient spectrum (peak ~13 THz)
• Specify relative index difference (RID) and cutoff wavelength
• Document compatibility with 1450-1490nm pump lasers