WDM Coupler
WDM Coupler is part of the fiber optic splitter range built by Ever Expresslink Limited in Ningbo, China.
Passive power division, the component PON architecture is built on
Interested in WDM Coupler
Email the model and quantity with your destination country. We reply with pricing, lead time and a datasheet.
Product Overview
WDM Coupler is part of the fiber optic splitter range built by Ever Expresslink Limited in Ningbo, China.
It is one of 6 items in this range. A typical application is dividing a PON feeder inside a street cabinet. What the range is built to give you there: consistent uniformity across output ports.
The problem it addresses is feeder fiber count that would be impossible to justify with point-to-point links. A practical note that applies across this range: verify every output port at commissioning, not just a sample. Specifications for a particular configuration are confirmed on the quotation rather than assumed from the designation.
Key Benefits
- Supplied as WDM Coupler, so the part you receive matches the designation you ordered against
- Consistent uniformity across output ports
- Available as bare fiber, boxed, tray and rack-mount formats
- Wide split ratios to suit different architectures
- APC terminated versions for low back reflection
Problems It Solves
- Reflections from splitter ports degrading upstream performance
- Feeder fiber count that would be impossible to justify with point-to-point links
- Split ratios chosen without checking the resulting power budget
- Uniformity variation across outputs that leaves some subscribers marginal
Application Scenarios
- Splitting for monitoring and test taps
- Dividing a PON feeder inside a street cabinet
- Distributing signal inside an FTTH splice closure
- Rack-mounted splitting inside a central office
Who It Is For
- CATV operators distributing optical signal
- Cabinet and closure assemblers
- System integrators building distribution nodes
- FTTH and PON network operators
Technical Features
- Planar or fused construction depending on the format
- Wide operating wavelength coverage for PON bands
- Output uniformity controlled across all ports
- Bare fiber, ABS box, tray, LGX and rack-mount packaging
Materials
- Planar waveguide chip or fused fiber element
- Silica fiber pigtails
- ABS or metal enclosure
- Furcation tubing on terminated versions
Specifications
| Product Designation | WDM coupler |
|---|---|
| Product Family | Fiber Optic Splitter |
| Manufactured In | Ningbo, China |
| Warranty | One year against defects in materials and workmanship |
Values shown are those carried by the product designation. Dimensional and optical values for a specific order are confirmed on the quotation.
Manufacturing Process
- Splitter element production and screening
- Pigtail splicing and furcation
- Packaging into the ordered format
- Full-port optical test across the operating band
- Labeling and packing
Quality Control
- Insertion loss measured on every output port
- Uniformity across ports verified against specification
- Return loss measured on terminated versions
- Temperature cycling on sample units
- Port labeling verified against the test record
Customization Options
- Split ratio to your architecture
- Bare, boxed, tray, LGX or rack-mount format
- Connector type and polish on terminated versions
- Pigtail length and furcation
- Private-label packaging
Handling WDM Coupler
Before You Order
- Calculate the full optical budget before fixing the split ratio
- Account for splitter loss, connector loss and fiber loss together
- Use APC on PON paths to keep back reflection down
In Service
- Keep unused ports capped inside the enclosure
- Verify every output port at commissioning, not just a sample
- Record port assignments so a future fault can be localised quickly
Questions About WDM Coupler
What do you need from us to quote WDM Coupler?
The quantity, the destination and anything that has to match on your side: connector and polish at each end, fiber mode and core size, and length where the item is an assembly. If you are matching a part you already buy, send the sample and we will quote against it.
Can you supply splitters with pigtails cut to our tray length?
Yes. Pigtail length, furcation and connector type are all specified per order so the device drops into your enclosure without re-coiling.
How do I choose a split ratio?
Work backwards from the optical budget. Add up transmitter output, splitter loss, connector and splice loss and fiber attenuation over the longest branch, then check the result against receiver sensitivity with margin left over.
What packaging formats are available?
Bare fiber, ABS box, tray, LGX cassette and rack-mount versions. The right one depends on whether the splitter lives in a closure, a cabinet or a central-office rack.
Should splitter outputs be UPC or APC?
APC is normal on PON because back reflection from many ports adds up and degrades upstream performance. UPC is acceptable on some enterprise and monitoring applications.
More Fiber Optic Splitter
Splitter Enclosure
Used for dividing a PON feeder inside a street cabinet.
View Details
MTP-LC (Ref 297)
Used for dividing a PON feeder inside a street cabinet.
View Details
Fiber Splitter
Used for distributing signal inside an FTTH splice closure.
View Details
Splitter (Ref 311)
Used for distributing signal inside an FTTH splice closure.
View DetailsGuides Cases and Industries
PLC and FBT Optical Splitters Compared
Two ways to divide light, why PON standardized on one of them, and how to check whether your budget can carry the split you want.
Process GuideUPC and APC End Face Polish Explained
Why an eight degree angle changes where reflected light goes, when that matters enough to pay for it, and what happens if the two are mated.
Deployment ProfilePON Street Cabinet Split Point
How a feeder fiber becomes subscriber ports inside a street cabinet, and which decisions are expensive to reverse
Deployment ProfileCATV Optical Level Balancing
Bringing an optical distribution tree into level, and keeping reflections out of the picture
IndustryCATV and Broadcast Networks
Optical and coaxial distribution where return loss and level balance decide picture quality
IndustryFTTH and Broadband Operators
Drop-side and distribution hardware for networks whose cost is decided per subscriber
Request Pricing For WDM Coupler
Tell us the quantity and destination. If you are matching a part you already buy, send the sample and we will quote against it.