Precision Protrusion. Advanced Protrusion Fiber Array Unit.
The specialized optical interface designed for Detachable Fiber-to-Chip (D-FAU) applications. Featuring ultra-clean protruding 125µm fiber ends for direct, high-efficiency coupling in next-generation Co-Packaged Optics (CPO) systems.
Protruding Design
12 to 32 Channels
CPO & D-FAU Ready
≤0.08 dB Array IL
Main Features
Essential for D-FAU
Purpose-built as a critical component for Detachable Fiber-to-Chip (D-FAU) connectors. This protrusion array bridges the external optical network directly to the silicon photonics engine, enabling scalable Co-Packaged Optics (CPO) architectures.
Ultra-Clean Protrusion
The specialized manufacturing process ensures the exposed 125µm protruding fiber area maintains exceptional cleanliness and surface quality. Combined with high-precision polishing, it guarantees flawless physical contact and maximum optical transmission.
Extreme Positional Accuracy
Engineered to eliminate coupling loss in highly sensitive environments. The core pitch tolerance for the protruding fibers is strictly controlled under 20µm, while the maximum fiber end position deviation is kept below ±10µm for 12 to 16 channel configurations.
Fully Customizable Footprint
Adaptable to diverse silicon photonic layouts and module housings. Supports extensive size customization, multiple channel counts (12 to 32), and seamless integration with both Single-Mode (SM) and Polarization-Maintaining (PM) optical fibers.
Technical Specifications
| Parameter | 12~16CH | 32CH |
|---|---|---|
| Material Composition | FAU + Connector | FAU + Connector |
| Supported Fiber Types | Corning (or equiv) SM Fiber, PM Fiber, RC&RC PM Fiber | Corning (or equiv) SM Fiber, PM Fiber, RC&RC PM Fiber |
| Cladding Diameter | 125 µm or 80 µm | 125 µm or 80 µm |
| Core Pitch Options | 127, 250, 82 µm | 127, 250, 82 µm |
| Pitch Tolerance | <20 µm (Protruding fiber) | <20 µm (Protruding fiber) |
| Max End Position Deviation | <±10 µm | <±15 µm |
| Insertion Loss | ≤0.08 dB (Excluding connector) | ≤0.08 dB (Excluding connector) |
| Return Loss | ≥14 dB (0° Polish) / ≥55 dB (8° Polish) | ≥14 dB (0° Polish) / ≥55 dB (8° Polish) |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C |
| Storage Temperature | -40°C to +85°C | -40°C to +85°C |
Deployment Scenarios
Advanced Single-Mode Modules
As data center transceivers scale to higher baud rates, minimizing internal coupling loss is paramount. The protrusion design ensures a direct, low-loss interface between the internal optical engine and external connectors, perfectly suited for next-generation high-speed single-mode transceiver modules.
Silicon Photonics Direct Coupling
Tailored for 1D optical edge interfaces where traditional flat arrays fall short. The precisely protruding fibers allow for intimate, unobstructed coupling with edge-emitting lasers or receiving waveguides on photonic integrated circuits, driving the physical layer of CPO deployments.
Reliability Built-In
Perfect Your Edge Connection.
Need specific protrusion lengths, custom pitch dimensions, or specialized PM fiber alignment for your D-FAU design? Consult with our engineering team to customize the protrusion fiber array to your precise chip-level requirements.