Verified Specifications
| Parameter | Specification |
|---|---|
| Fiber type | Panda-type PMF; elliptical-core PMF optional |
| Operating wavelength | 1310 nm / 1550 nm typical; custom wavelengths available |
| Channel count | 1×4, 1×8, 1×12, 1×16; custom on request |
| Fiber pitch | 127 µm standard; 250 µm or custom on request |
| Slow-axis alignment | ±3° standard; ±1° or tighter on request |
| Insertion loss | ≤0.50 dB typical per channel |
| Return loss | ≥55 dB typical |
| Extinction ratio | ≥20 dB typical |
| Substrate material | Glass V-groove or silicon V-groove |
| Fiber protrusion | Per customer drawing; typically 0.3–1.0 mm |
| Operating temperature | -20°C to +70°C standard; extended range available |
Standard single-mode arrays, detachable FAU configurations and custom pigtail exits are project options until the exact drawing and datasheet are approved.
When to Use a PMF FAU
- Silicon photonics chip coupling in optical engines
- External laser source interface in CPO switch trays
- CPO and NPO modules
- Optical backplanes and board-to-board optical interconnects
- High-density optical subassemblies for AI and HPC equipment
Use a PMF patch cord / pigtail instead when
The link only needs a connectorized polarization-preserving cable and does not require chip-level array coupling.
Use an optical flex circuit instead when
The equipment requires flexible routing, channel shuffling or multiple exits inside a constrained envelope.
Installation and Acceptance Checklist
- Provide the optical-engine or chip-coupling drawing.
- Define the slow-axis orientation and angular tolerance.
- Confirm protrusion, substrate outline and pigtail exit.
- Specify environmental qualification requirements.
- Agree on IL, RL, extinction-ratio and end-face limits.
- Handle only by the substrate or strain relief.
Related Products
Request a FAU Drawing
Send the optical-engine drawing, channel count, pitch, slow-axis orientation, protrusion, quantity and application details for review.
