C-Band PM Fiber Patch Cable with SC/APC Connectors, 4 m Length and Slow-Axis

Product Overview

The C-Band PM Fiber Patch Cable is a polarization-maintaining interconnect assembled with PM1550 fiber and SC/APC connectors for polarization-sensitive optical systems.

Key Features of the C-Band PM Fiber Patch Cable

• PM1550 fiber with slow-axis alignment — provides a defined polarization orientation for polarization-sensitive optical connections.
• Insertion loss of ≤0.3 dB — helps control optical power loss within the system link budget.
• Extinction ratio of ≥23 dB — supports applications that require preservation of the launched polarization state.
• Return loss above 55 dB — helps limit back reflection in C-band optical assemblies.
• SC/APC connectors on both ends — provide an angled physical-contact interface for systems requiring reduced connector reflection.
• 4 m overall cable length — supports routing between separated optical components, instruments, or equipment interfaces.
• 2.0 mm blue protective cable with specified strain relief — supports cable identification and mechanical handling at the connector transition.
• A/B identification sleeves — simplify cable-end identification during installation, testing, and system maintenance.

Applications

• Polarization-maintaining component interconnection
• Coherent optical communication test setups
• C-band optical transceiver and subsystem integration
• Polarization-sensitive DWDM assemblies
• Fiber interferometers and sensing systems
• C-band fiber amplifier and laser test benches
• Photonic integrated circuit test and characterization
• Optical test and measurement equipment

Technical Specifications

Why Choose This Product

• Defined polarization orientation: PM1550 fiber and slow-axis alignment support integration into polarization-sensitive C-band optical paths.
• Project-specific configuration review: Cable length, identification, connector arrangement, protective structure, and inspection requirements can be evaluated before production.
• Engineering coordination: Axis orientation, connector key direction, cable construction, and strain-relief details can be confirmed through drawings and technical review.
• Traceable optical testing: Key optical parameters can be documented in a neutral-format test report.
• Qualification and supply flexibility: The configuration can be reviewed for initial sample evaluation and subsequent order requirements without making unsupported volume commitments.

FAQ

1. What is the C-Band PM Fiber Patch Cable used for?

It is used to connect polarization-sensitive optical components, instruments, and subsystems while maintaining a defined polarization-axis orientation.

2. What operating wavelength does this patch cable support?

The supplied requirement specifies C-Band operation. The exact wavelength range should be confirmed before quotation or production.

3. What type of fiber is used?

The cable is specified with PM1550 polarization-maintaining fiber from YOFC/Changfei. The complete fiber model should be confirmed if it is required in the drawing or inspection document.

4. How is the polarization axis aligned?

The cable uses slow-axis alignment. The relationship between the slow axis and the SC connector key, including the permitted angular tolerance, should be defined in the approved drawing.

5. Which connectors are installed?

The current configuration uses SC/APC connectors on both ends. Any alternative connector configuration would require engineering review.

6. What cable protection and strain relief are used?

The cable has a 2.0 mm blue outer structure and a slotted strain-relief design. Whether the internal construction is a loose tube or an aramid-yarn-reinforced cable should be confirmed.

7. Can a test report be provided?

Yes. Optical performance can be tested according to the agreed specification, and a neutral-format test report can be provided upon request.

8. What information is required for a quotation?

Please provide the operating wavelength, fiber type, polarization-axis requirement, connector type, fiber length, cable or package requirement, target optical specifications, identification requirements, and estimated quantity.

Call to Action

For a technical review or quotation, please provide the required operating wavelength, channel count or fiber count, fiber type, connector type, fiber length, package requirement, target optical specifications, and estimated quantity. Connector key orientation, axis alignment, cable construction, sleeve markings, and test-report requirements should also be included when applicable.