CWDM
Descriptions
CWDM, the abbreviation of coarse wavelength division multiplexer, are based on proven thin-film filter technology and can be used in multi-channel CWDM module. CWDM module is cascaded with 1×2 CWDM components.
Features
Wide passband
Low Insertion Loss
High Channel Isolation
High Stability and
Reliability
Expoxy Free in Optical Path
Applications
Optical Fiber Communication Systems
Optical Devices
Opticla Amplifiers
Fiber Lasers
Wavelength Division
Multiplexing Systems
System Monitors
Specifications
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Parameters |
CWDM Components |
CWDM Module |
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1x2 |
4Ch |
8Ch |
16Ch |
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Operating Wavelength(nm) |
Customized; 1260~1620 |
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Wavelength (nm) |
1271, 1291, 1311, 1331, 1351, 1371, 1391, 1411,1431 1451, 1471, 1491, 1511, 1531, 1551, 1571, 1591, 1611 |
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Insertion Loss(dB) |
Transmission |
≤0.6(@1260~1620) |
<1.8 |
<2.5 |
<3.5 |
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Reflection |
<0.6(@1260~1620) ≤0.4(@1260~1460 or 1460~1620) |
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Insertion Loss Thermal Stability(dB/℃) |
≤0.005 |
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Channel Space(nm) |
20 |
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Channel Bandwidth (nm) |
λc ± 6.5 |
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Channel Flatness(dB) |
≤0.4 |
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Isolation(dB) |
Transmission |
≥40 |
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Reflection |
≥20 |
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Return Loss(dB) |
>50 |
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Directivity(dB) |
≥50 |
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Power handling(mW) |
≤500 |
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Operating Temperature(°C) |
-20 ～ +70 |
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Storage Temperature(°C) |
-40 ～ +85 |
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Package Size(mm) |
Ф5.5× L34 Stainless Steel Tube |
100×80×10 |
LGX |
1U |
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Remark: The above specification is without connector.
with connectors:0.3dB higher for IL,5dB lower for RL.
Ordering Information
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CWDM – A — B — C - D — E — F — G — H — I |
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A |
For Module |
M=Mux, D=Demux |
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B |
Port Number |
1x2, 1x3, 1x4, 1x8, 1x16 |
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C |
Transmission Wavelength |
1471, 1491, 1511, 1531, 1551, 1571, 1591…T1471~1511 etc |
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D |
Operating Wavelength |
H=1460~1620nm,F=1260~1620nm,S=1260~1460nm,O=Other |
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E |
Pigtail Type |
B=250um bare fiber, 0.9=0.9mm loose tube, 2.0= 2.0mm loose tube, 3.0=3.0mm loose tube etc |
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F |
Fiber Type |
SMF-28e, SMF-28e XB, Others. |
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G |
Connector Type |
N=None, LC/UPC, LC/APC, SC/UPC, SC/APC, FC/UPC, FC/APC, etc |
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H |
Package Size |
5.5x34mm, 100×80×10mm, Others. |
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I |
Fiber length |
005=0.5m, 010=1.0m, etc |
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For example：CWDM –M- 1x4-1551-H-0.9-SMF-28e-FC/APCx5-100x80x10-010 |
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