DWDM Filters

A DWDM filter is a device which separates the signal of a single wavelength from many signals transmitted at different wavelengths. Optical signals are sent to the Common port, and separation takes place by transmitting a given wavelength to the Pass port and reflecting the rest of the spectrum to the Reflection fiber.

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DWDM Filters (0,31 MB)
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Features

High thermal stability of parameters

Low insertion and polarization losses

Available with any type of fiber connectors

Delivered with test reports showing the whole spectra profile

Applications
  • WDM systems
  • ADD/DROP solutions
  • Telecommunication networks
  • Optical amplifiers
  • CATV systems
Technical Data
Type 100 GHz 200 GHz
Central wavelength λC ITU Grid
Passband λC ± 0.11 nm λC ± 0.25 nm
Adjacent ch. isolation > 28 dB 30 dB
Nonadjacent ch. isolation > 40 dB 40 dB
Express ch. isolation > 12 dB
Attenuation < 1.0 dB < 0.8 dB
Express ch. attn. < 0.4 dB
Passband ripple < 0.5 dB < 0.3 dB
Directivity ≥ 45 dB ≥ 50 dB
PDL < 0.15 dB < 0.10 dB
PMD < 0.20 ps < 0.10 ps
RL > 45 dB
Input power ≤ 500 mW
Temp. of operation from 0 to 700C
Temp. of storage from -40 to 850C

Notice: Parameters listed in the table refer to components without connector terminations.

Casings
  • 250 μm output fibers: Ø34x5.5 mm
  • output fibers in 900 μm coating: Ø38x5.5 mm
  • output fibers in 0.9/2.0/3.0 mm coating: blackbox 90x20x10 mm