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Product Profile
- This Mux Demux 18CH CWDM is a standard 1U rack-mount passive device with pigtails. It functions as both a multiplexer and demultiplexer, supporting both wavelength multiplexing and demultiplexing. Utilizing a single fiber, it enables simultaneous transmission of 18 different wavelength signals, significantly improving fiber utilization and reducing cabling costs. The CWDM employs a half-path adhesive-free optical path technology, exhibiting excellent performance characteristics such as polarization insensitivity, high isolation, low crosstalk, low insertion loss, and low temperature drift, ensuring stable and durable operation.
- This Mux Demux 18CH CWDM comes standard with LC/UPC interfaces and also supports customization of other interface specifications, providing customized solutions based on customers' actual application needs. It comprehensively covers the entire standard CWDM band from 1260nm to 1620nm, offering excellent compatibility and widely adapting to various service transmission scenarios including 1G/10G/25G Ethernet, SDH/SONET, 1/2/4/8/16G Fibre Channel, FTTx, and CATV.
Product Specifications
| Parameter | 4CH | 8CH | 16CH | 18CH |
| Operating Wavelength(nm) | 1260～1620 | |||
| Channel Wavelength(nm) | 1270,1290,...,1590,1610,or 1271,1291,...,1591,1611 | |||
| Channel Spacing(nm) | 20 | |||
| Channels Passband(nm) | CWL+/-6.5nm | |||
| Insertion Loss (dB) | ≤1.2 | ≤2.7 | ≤3.2 | ≤3.7 |
| Channel Pipple(dB) | ≤0.5 | |||
| Adjacent Isolation(dB) | ＞30 | |||
| Non-adjacent Isolation(dB) | ＞40 | |||
| Polarization Mode Dispersion(ps) | ≤0.2 | |||
| Polarization Dependent Loss(dB) | ≤0.2 | |||
| Directivity(dB) | ＞45 | |||
| Retumn Loss(dB) | ＞45 | |||
| Maximum Power Handling(mW) | 500 | |||
| Operating Temperature(℃) | -5～70 | |||
| Storage Temperature(℃) | -40～85 | |||
| Fiber Type | G657A1 or Customized | |||
| Connector | Customized | |||
| Package Dimension(mm) | 100×80×10 | 120×80×18 | ||
| Remarks: | ||||
| *1.All parameters are without connectors | ||||
| *2.Connector Loss: 0.2dB/each added | ||||
Product Advantages
Low lL
High channel isolation
Industrial grade
Bidirectional Compatibility
WDM single fiber bidirectional transmission system
WDM dual fiber bidirectional transmission system
CWDM + DWDM networking
This CWDM supports flexible pairing with DWDM dense wavelength division equipment to achieve dual-layer hybrid wavelength division multiplexing networking, perfectly solving the pain point of bidirectional communication with large bandwidth and few optical fibers across sites.
- Service Side: Both Site A and Site B can simultaneously access various service signals, including storage, IP, video, switches, and core data. Multiple sets of dense wavelengths (C29-C36, C53-C60, etc.) are first combined and split using DWDM devices.
- Core Multiplexing: An 18CH CWDM Mux Demux carries the combined signal from the two DWDM sets on two independent wavelengths, 1530nm and 1550nm, completing a secondary multiplexing.
- Link Transmission: Dual-wavelength bidirectional point-to-point long-distance transmission can be achieved using only one pair of idle bare optical fibers (Dark Fiber), without the need for additional fiber optic cabling.
- Remote Demultiplexing: The remote site uses CWDM+DWDM to progressively split the wavelengths, completely restoring all original services without data loss or service interference throughout the entire process.
In passive WDM optical transmission systems, CWDM (Coarse Wavelength Division Multiplexing) and DWDM (Dense Wavelength Division Multiplexing) can be mixed and matched to flexibly build highly stable and reliable long-distance transmission network solutions as needed. This architecture not only minimizes the insertion loss of the entire link but also greatly reduces the amount of optical fiber used, significantly saving valuable optical fiber link resources.
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|
Parameter |
Unit |
Value |
|||
|
Channels Number |
- |
2 |
4 |
8 |
16 |
|
Channel Space |
nm |
20 |
|||
|
Central Wavelength |
nm |
1271~1611 |
|||
|
Operating wavelength |
nm |
1260-1460 or 1460-1620 or 1260-1620 |
|||
|
Passband |
nm |
λITU±6.5 |
|||
|
Pass band Flatness |
dB |
≤0.5 |
|||
|
Insertion Loss (Typ.) |
dB |
0.8 |
1.3 |
2.4 |
4.6 |
|
Insertion Loss (Max.) |
dB |
0.9 |
1.5 |
2.8 |
5.0 |
|
Adjacent Channel Isolation |
dB |
≥30 |
|||
|
Non-adjacent Channel Isolation |
dB |
≥40 |
|||
|
Polarization Mode Dispersion |
ps |
≤0.1 |
≤0.1 |
≤0.15 |
≤0.15 |
|
Polarization Dependent Loss |
dB |
≤0.1 |
≤0.15 |
≤0.2 |
≤0.25 |
|
Return Loss |
dB |
≥50 |
|||
|
Directivity |
dB |
≥50 |
|||
|
Insertion Loss Temperature Sensitivity |
dB/°C |
0.005 |
0.005 |
0.007 |
0.007 |
|
Wavelength Temperature Shifting |
nm/°C |
0.002 |
|||
|
Operation Temperature |
°C |
-10~+70 |
|||
|
Storage Temperature |
°C |
-40~+85 |
|||
|
Package Dimension |
mm |
ABS box: 100X80X10mm or customized |
|||
