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HomeFreeWhat are Fiber spectrum bands?
Last Updated: August 16, 2025
1 min read
151

Band Description

Wavelength Range (nm)

850 Multimode Window

800-910

O Original

1260-1360

E Extended

1360-1460

S Short

1460-1530

C Conventional (EDFA Window)

1530-1565

L Long (Extended EDFA)

1565-1625

U Ultra Long Haul

1625-1675

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