Erbium-Doped Fiber for EDFAs from Japan
Single-mode erbium-doped optical fiber (EDF) used as gain medium in Erbium-Doped Fiber Amplifiers (EDFAs) for amplifying voice, data, and video signals in long-haul DWDM communication systems. Core doped with erbium ions for 1550nm amplification. HTS 9001.10.0030 for telecom transmission role.
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
• Provide absorption/emission spectra confirming 1530-1565nm communication band
• Declare numerical aperture and core doping concentration specs
• Classify as fiber component, not amplifier assembly per Chapter 90 part notes