OADM
DWDM Optical Add/Drop multiplexer (OADM) is a passive optical device used in WDM networks for adding and dropping one/multiple 100 GHz DWDM channels in the C-band into one or two fibers, while letting the rest of the wavelengths bypass to the needed destination. Using the DWDM technology can add effctively WDM capability to their existing and new networks, and extend the optical signals transmission distance.
Product Features
l Low insertion loss
l Low polarization loss
l High-channel isolation
l High reliability
Product Applications
l 10/1G Ethernet network
l 16/8/4/2/1G FC network
l SDH/SONET network
l FTTx network
l C/DWDM network
Product Specifications
|
Parameters |
Unit |
Specifications |
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Wavelength Range |
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ITU channels 186.6 to196.1 THz |
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Channel Center Wavelength |
nm |
ITU Grid |
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Channel Spacing |
Ghz |
100 |
200 |
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Channel Pass band (@-0.5dB) |
nm |
0.22 |
0.5 |
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Channel No. |
λ |
1 |
2 |
4 |
8 |
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|
Insertion Loss |
Add/ Drop |
dB |
≤0.8 |
≤1.2 |
≤1.7 |
≤3.0 |
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Express |
≤0.8 |
≤1.6 |
≤2.5 |
≤4.0 |
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Adjacent Channel Isolation |
dB |
≥ 30 |
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Non-adjacent Channel Isolation |
dB |
≥ 45 |
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Wavelength thermal stability |
nm/℃ |
≤ 0.003 |
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Insertion loss thermal stability |
dB/℃ |
≤ 0.005 |
≤ 0.007 |
≤ 0.008 |
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PDL |
dB |
≤ 0.1 |
≤ 0.15 |
≤ 0.20 |
≤ 0.25 |
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Polarization mode dispersion |
ps |
≤ 0.1 |
≤ 0.15 |
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Directivity |
dB |
≥ 50 |
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Return loss |
dB |
≥ 45 |
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Optical Power |
mW |
≤ 500 |
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