1. Product Description
This CWDM/CCWDM Multiplexer is a Coarse Wavelength Division Multiplexer designed specifically for optical transmission networks.
2. Key Features
| Parameter |
Unit |
Value |
| Operating Wavelength |
nm |
1260~1660 |
| Special Port |
nm |
Monitor |
| Center Wavelength |
nm |
1270/1290/1310/…../1570/1590/1610 or 1271/1291/1311/…../1571/1591/1611 |
| Channel Spacing |
nm |
20 |
| Channel Passband |
Min |
nm |
±6.5 |
| Channel |
- |
2CH |
4CH |
6CH |
8CH |
18CH |
| Port Insertion Loss |
CWDM. Max |
dB |
1.2 |
1.5 |
2.0 |
2.6 |
4.2 |
| CCWDM. Max |
dB |
0.6 |
0.8 |
1.5 |
2.0 |
2.5 |
| Isolation |
Adjacent |
dB |
≥30 |
≥30 |
≥30 |
≥30 |
≥30 |
| Non-adjacent |
dB |
≥40 |
≥40 |
≥40 |
≥40 |
≥40 |
| Ripple |
Max |
dB |
0.3 |
0.3 |
0.5 |
0.5 |
0.5 |
| PDL |
Max |
dB |
0.5 |
| Return Loss |
Min |
dB |
40 |
| Directivity |
Min |
dB |
50 |
| Power Handing |
Max |
mW |
300 |
| Fiber Type |
- |
G67A1/ A2/ B3 or SMF-28 |
| Fiber Coating |
um |
250 µm / 900 µm loose tube |
| Fiber Length |
mm |
1000 |
| Connector |
- |
LC/UPC or Customized |
| Dimensions (HxWxD) |
CWDM |
mm |
80x58x8, 120x80x18, 155x129x29, 482x250x44 |
| CCWDM |
mm |
45x25x6, 50x50x6, 60x45x6 |
| Operating Temperature |
°C |
-5~65 |
| Storage Temperature |
°C |
-40~85 |
- Supports 1260–1660 nm operating wavelength range
- Supports both CWDM and CCWDM solutions
- Offers 2-channel / 4-channel / 6-channel / 8-channel / 18-channel configurations
- Channel spacing: 20 nm; Channel bandwidth: ±6.5 nm
- Integrated Monitor port
- Adjacent channel isolation: ≥30 dB; Non-adjacent channel isolation: ≥40 dB
- CCWDM features lower insertion loss and a more compact structure
- Supports LC/UPC or custom connectors
- Supports modular, box-type, and rack-mount packaging options
3. Applications
- CWDM optical transmission systems
- Wavelength Division Multiplexing (WDM) and Demultiplexing equipment
- Optical line monitoring systems
- Metropolitan Area Network (MAN) and Access Network deployment
- Data center optical interconnects
- Optical communication test platforms
- OEM optical communication modules
FAQ
1. What customization options are available for this product?
We support customization of the number of channels, center wavelength, packaging type, fiber type, fiber length, 250μm bare fiber or 900μm loose tube, connector type, and port definition. Standard fiber options include G657A1, G657A2, G657B3, or SMF-28. Connectors can be LC/UPC or customized according to customer project requirements.
2. What packaging sizes are available?
CWDM is available in module box and rack-mount packages, with typical sizes including 80×58×8mm, 120×80×18mm, 155×129×29mm, and 482×250×44mm. CCWDM is available in more compact sizes, such as 45×25×6mm, 50×50×6mm, and 60×45×6mm, suitable for built-in equipment and high-density cabinet installation.
3. How do you ensure consistency and quality in batch deliveries? Gracyfiber is an engineering-driven manufacturer of passive optical components. With over 25 years of industry experience, its team owns a manufacturing facility exceeding 2,000 square meters and specializes in WDM, optical filtering, precision optical alignment, and large-scale packaging. Products are ISO9001 and RoHS certified, and the product page indicates a monthly supply capacity of 100,000 pieces. Before shipment, testing can be performed on insertion loss, isolation, return loss, PDL, passband, port definition, appearance, and connector quality, and test data can be provided.
