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Optical Fibre wavelength Bands-O,E,S,C,L,U-Band

Following wavelength bands are used in fibre optical communication. This bands are used by optical engineers so often.The values in the table are approximate. They have not been finalized as standard values.

Optical fibre wavelength band Band descriptor Wavelength Range (nm)
O-band Original 1260 to 1360
E-band Extended 1360 to 1460
S-band Short 1460 to 1530
C-band Conventional 1530 to 1565
L-band Long 1565 to 1625
U-band Ultra-long 1625 to 1675


Fibre optic cable power loss vs wavelength

Power loss per km for various optical fibre cables based on wavelength bands viz.S band, C band and L band is mentioned below.

What is Difference between

PDH vs SDH
SONET versus SDH
CAS vs CCS
FDMA Vs. TDMA Vs. CDMA
difference between FDM and OFDM
Difference between SC-FDMA and OFDM
Difference between TDD and FDD
FDM vs TDM

RF and Wireless Terminologies


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