2×2 5/95 FBT Coupler with Corning 1060 Fiber for Optical Power Tapping,

The 2×2 5/95 FBT Coupler is an asymmetric fused biconical taper device designed to divide optical power between a main path and a tap path. It uses Corning 1060 fiber with a 200 kpsi proof-test specification and is supplied without connectors for direct splicing into OEM optical assemblies. 

• Asymmetric 5/95 optical power split — directs most optical power through the main path while providing a smaller tap signal for monitoring or feedback.
• 2×2 port configuration — provides two input and two output paths for integration into multi-port optical assemblies.
• Main-path insertion loss below 0.4 dB — helps control power reduction on the nominal 95% optical path.
• Tap-path insertion loss below 15.2 dB — defines the optical loss requirement for the nominal 5% branch.
• PDL below 0.2 dB — limits polarization-related variation in the transmitted optical power.
• Corning 1060 fiber with 200 kpsi proof-test specification — provides a defined fiber and mechanical proof-test requirement for the assembly.
• Connectorless 0.9 mm protected pigtails — support direct fusion splicing into optical modules and OEM systems.
• Color-coded ports and custom compact package — simplify port identification and mechanical integration.

• Optical power tapping and monitoring
• Fiber laser subsystem integration
• Fiber sensing systems
• Optical feedback and stabilization loops
• Laser power monitoring assemblies
• Optical test and measurement equipment
• Single-mode fiber signal distribution
• OEM optical component assemblies

Optical performance can be tested according to the agreed specification. Key parameters, including coupling ratio, insertion loss, and polarization-dependent loss, are verified before shipment. Test reports can be provided upon request. Customized inspection requirements can be discussed, including port identification, path-by-path optical records, pigtail length verification, and packaging checks.

• Defined asymmetric power distribution: The 5/95 coupling ratio supports applications requiring a main optical path and a lower-power monitoring branch.
• Direct system integration: Connectorless, protected pigtails allow the coupler to be fusion-spliced into modules and optical assemblies.
• Project-specific mechanical configuration: The custom package, pigtail length, and port colors can be reviewed against the installation drawing.
• Path-level testing documentation: Coupling ratio and insertion loss for each defined optical path can be included in the agreed test report.
• Qualification planning: The configuration can be reviewed for sample validation, small-batch evaluation, and subsequent order requirements.

It divides optical power into a nominal 95% main path and a nominal 5% tap path. Typical uses include optical power monitoring, feedback circuits, sensing equipment, and OEM optical assemblies.

The operating wavelength has not been specified in the supplied information. Corning 1060 identifies the fiber requirement but does not by itself define the guaranteed operating wavelength.

A 5/95 ratio allows most optical power to remain on the main path while a smaller portion is directed to a monitoring, measurement, or feedback branch.

The current configuration specifies Corning 1060 fiber with a 200 kpsi proof-test requirement. The complete Corning fiber model should be confirmed if required in the formal specification.

No. The supplied configuration is connectorless and uses 0.9 mm protected fiber pigtails for direct splicing.

The coupler uses a custom 3 × 50 mm package with 0.9 mm protected pigtails. The stated pigtail length is 1.00–1.05 m, subject to confirmation of the maximum-length instruction.

The current approved configuration is 2×2 with a 5/95 ratio and a custom 3 × 50 mm package. Any alternative ratio, package, fiber length, or port color arrangement requires engineering confirmation.

Yes. Optical performance can be tested according to the agreed specification, and test reports can be provided upon request.

Please provide the operating wavelength, port configuration, coupling ratio and tolerance, fiber type, connector requirement, fiber length, package dimensions, target insertion loss, PDL requirement, port color definition, and estimated quantity.

For a technical review or quotation, please provide the required operating wavelength, channel or port configuration, fiber type, connector type or bare-pigtail requirement, fiber length, package requirement, target optical specifications, coupling-ratio tolerance, port color definition, and estimated quantity. A port diagram is recommended for confirming the 95% and 5% optical paths.