GLSUN Coarse WDM Module CWDM Module
China [CN] CWDM can realize the multiplexing and demultiplexing between two communication channel .It can expand the capacity of single fiber to achieve bidirectional communication, which can widely used in optical network upgrade and expansion, or introduce new comprehensive business etc.
CWDM is also being used in cable television networks, where different wavelengths are used for the downstream and upstream signals. In these systems, the wavelengths used are often widely separated, for example the downstream signal might be at 1310 nm while the upstream signal is at 1550nm.
·Low insertion loss
·Low PDL
·High channel isolation
·Excellent environmental reliability
·WDM system
·CATV
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Parameters
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Unit
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SUN-CWDM Module
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Wavelength Range
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nm
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1260 ~ 1620
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Channel Center Wavelength
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nm
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1270 / 1290 / … / 1610 or 1271 / 1291 / … / 1611
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Channel Spacing
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nm
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20
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Channel Passband
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nm
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λc ± 7.5
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Channel No.
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λ
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2
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4
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8
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16
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18
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Insertion Loss
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dB
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≤0.8
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≤1.5
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≤2.5/★1.8
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≤5.2/★3.5
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≤ 6.4/★3.9
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Adjacent Channel Isolation
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dB
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≥ 30
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Non-adjacent Channel Isolation
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dB
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≥ 40
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Wavelength thermal stability
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nm/℃
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≤ 0.003
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Insertion loss thermal stability
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dB/℃
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≤ 0.003
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≤ 0.007
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≤ 0.008
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PDL
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dB
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≤ 0.1
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≤ 0.15
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≤ 0.15
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≤ 0.20
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≤ 0.25
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Polarization mode dispersion
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ps
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≤ 0.1
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≤ 0.15
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Directivity
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dB
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≥ 50
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Return loss
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dB
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≥ 45
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Optical Power
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mW
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≤ 500
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Operating Temperature
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℃
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-10 ~ +70
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Storage Temperature
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℃
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-40 ~ +85
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Relative Humidity
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%
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5 ~ 95
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Dimension
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ABS Box or LGX Box or 1U(2U) Rack mount
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Note:
1. Customization is available.2. Insertion loss value after “/★” is “with skip filter” .3. Specified without connector, and add an additional 0.2dB loss per connector.
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