4. Optical Performance Specifications
4.1 Insertion Loss (IL)
Connector Type | Single-mode (APC 8°) | Multi-mode (PC) |
MPO (Standard) | ≤0.75dB (Max), ≤0.50dB (Typical) | ≤0.6dB (Max), ≤0.50dB (Typical) |
MPO (Super Low Loss) | ≤0.35dB (Max), ≤0.20dB (Typical) | ≤0.35dB (Max), ≤0.20dB (Typical) |
LC | ≤0.3dB | ≤0.3dB |
4.2 Return Loss (RL)
Connector Type | Single-mode (APC) | Multi-mode (PC) |
MPO | ≥60dB | ≥25dB |
LC | APC≥60dB; UPC≥50dB | ≥35dB |
4.3 Mechanical & Environmental
• Durability: <0.3dB typical change after 200 matings
• Interchangeability: ≤0.2dB
• Tensile strength: >70N
• Operating temperature: -40°C to +85°C
5. MPO Connector Details
• Single-mode APC: Green housing + black boot (standard loss); Yellow housing + black boot (super low loss)
• Multi-mode OM1/OM2 PC: Beige housing + black boot
• Multi-mode OM3/OM4 PC: Aqua or heather violet housing + black boot
6. End-Face 3D Geometry Requirements
6.1 MPO End-Face (IEC 61300-3-30)
• ROC-X (ABS): ≥2000mm
• ROC-Y (ABS): ≥50mm
• APC angle: 7.85°–8.15°
• PC angle: -0.2°
• Fiber height: 1000nm–3500nm
• Max DH (all fiber): -300nm to 300nm
6.2 LC End-Face Geometry
• Radius of curvature (PC): 7–25mm
• Radius of curvature (APC): 5–15mm
• Apex offset: ≤50μm
• Fiber spherical height: ±100nm
• APC angular offset: 8°±0.5°
6.3 End-Face Quality (IEC 61300-3-35)
• Single-mode: No scratches or defects in core, cladding, adhesive, contact and ferrule zones
• Multi-mode: No scratches or defects in core, cladding, adhesive, contact and ferrule zones
7. Typical Applications
• Data communication networks
• Optical access networks
• Storage area networking (SAN) / Fiber Channel
• High-density data center architectures
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