CWDM Coarse Wavelength Division Multiplexer
■Product overview
CWDM Coarse Wavelength Division Multiplexer, sparse course wavelength division multiplexer, also known as coarse wavelength division multiplexer. Coarse Wavelength Division Multiplexing is a wavelength division transmission technology of metropolitan area network access layer and short distance. It transmits signal by making different ITU-T CWDM wavelength signals multiplex to single fiber in receiving terminal. It decomposes composite signal into different ITU-T CWDM wavelength signal. The product is CWDM Coarse Wavelength Division Multiplexer of Multilayer dielectric film type. It has many advantages, such as mature process, low insertion loss, and so on.
■Product features
♦ Low insertion loss
♦ Low polarization dependent loss
♦ High channel isolation
♦ Good environmental reliability
♦ High level of integration by plug-in design
■Performance index
|
Parameters |
Unit |
Specifications |
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|
Wavelength Range |
nm |
1260 ~ 1620 |
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|
Channel Center Wavelength |
nm |
1270 / 1290 / … / 1610 or 1271 / 1291 / … / 1611 |
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|
Channel Spacing |
nm |
20 |
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|
Channel Passband |
nm |
λc ± 7.5 |
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|
Channel No. |
λ |
2 |
4 |
8 |
16 |
18 |
|
Insertion Loss |
dB |
≤0.8 |
≤1.5 |
≤2.5 |
≤5.2 |
≤ 6.4 |
|
Adjacent Channel Isolation |
dB |
≥ 30 |
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|
Non-adjacent Channel Isolation |
dB |
≥ 40 |
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|
Wavelength thermal stability |
nm/℃ |
≤ 0.003 |
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|
Insertion loss thermal stability |
dB/℃ |
≤ 0.005 |
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|
PDL |
dB |
≤ 0.1 |
≤ 0.15 |
≤ 0.15 |
≤ 0.20 |
≤ 0.25 |
|
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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■Product ordering information
|
PN |
Type |
Direction |
Channel Number |
Upgrade port |
Optical fiber interface |
Wavelength description |
|
MD |
1：CWDM |
1：MUX |
02：2 Channel |
E：Have |
LP：LC/PC |
A：Definition |
|
2：DEMUX |
– |
N：None |
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|
3：MUX /DEMUX |
16：16 Channel |
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