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Fused couplers for taps and custom ratios. Factory-terminated and 100% tested before shipment.
Fused biconical taper couplers split or tap light at any custom ratio — monitor taps (99/1, 95/5), protection splits and sensor networks where a specific asymmetric ratio beats the fixed steps of PLC.
Single-, dual- or tri-window designs matched to your operating wavelengths; steel-tube or ABS packaging.
| Ratios | 50/50 to 99/1 custom |
|---|---|
| Excess Loss | ≤ 0.1–0.3 dB |
| Windows | 1310/1490/1550 nm |
| Directivity | ≥ 55 dB |
| Type | Steel tube / ABS |
|---|---|
| Ends | Any connector or bare |
| Compliance | GR-1209/1221 |
High-density interconnect & spine-leaf
GPU fabrics and storage networks
Carrier transport and access
Campus backbone and SAN
For asymmetric taps and single-window links FBT is cheaper with marginally lower loss at its design wavelength; choose PLC when traffic spans wide wavelength ranges or needs many uniform ports.
Every assembly undergoes 100% optical inspection plus insertion- and return-loss testing to IEC, TIA/EIA and Telcordia standards. Test reports are available on request.
Yes — length, jacket color and material (PVC / LSZH / OFNP / OFNR), cable diameter (0.9 / 2.0 / 3.0 mm) and any connector combination are OEM/ODM customizable.
Standard configurations ship in 3–7 days with flexible MOQ. Custom OEM/ODM runs are quoted per project — send us your specs for a fast quotation.
Tell us the platform and the quantity. An engineer checks the part against your switch and software version before quoting — if it will not work, we say so.
Goes to our engineers and the quotation desk together. Replies come from sales@topnetsystem.com, usually within one working day.