We successfully delivered a high-transparency deep amber PEI (polyetherimide) component for a leading optical communication equipment manufacturer. Machined from ULTEM™ 1000 series deep amber high-clarity PEI, this precision part functions as a fiber array alignment holder in dense wavelength division multiplexing (DWDM) modules. The deep amber transparency enables visual verification of fiber positioning while the material's exceptional thermal stability ensures consistent optical alignment across operating temperatures.
| Project Name | Deep Amber PEI Fiber Array Alignment Holder for Optical Communication |
| Material | PEI (Polyetherimide) – ULTEM™ 1000 Series High-Clarity |
| Material Color | Deep Amber / High-Transparency Amber |
| Process | CNC milling |
| Key Feature | High transparency for visual fiber inspection, precision fiber alignment channels |
| Dimensional Tolerance | ±0.005mm on fiber positioning features |
| Surface Finish | Ra ≤ 0.4μm (fiber contact areas) |
| Continuous Operating Temperature | 170°C |
| Glass Transition Temperature (Tg) | 217°C |
| Coefficient of Thermal Expansion | 5.4 × 10⁻⁵ /°C (similar to glass fibers) |
| Refractive Index | 1.65 – 1.70 |
| Dielectric Constant (1 MHz) | 3.15 (stable across frequency) |
| Dissipation Factor (1 MHz) | 0.0025 (low signal loss) |
| Application | Optical communication / Fiber array alignment / DWDM modules |
| Property | Benefit for Optical Communication |
| High Transparency (Deep Amber) | Visual inspection of fiber alignment and positioning during assembly and maintenance |
| Low CTE (5.4 × 10⁻⁵ /°C) | Matches glass fiber expansion, maintains alignment across temperature variations |
| High Tg (217°C) | Withstands soldering and reflow processes in module assembly |
| Stable Dielectric Properties | Minimal signal loss in high-frequency RF and optical-electrical integration |
| Low Moisture Absorption | Consistent dimensions in humid data center environments |
| Chemical Resistance | Compatible with optical-grade cleaning solvents and adhesives |
| Inherent Flame Retardancy | UL94 V-0 rating meets telecom equipment safety standards |
100% inspection performed using high-resolution vision measurement system and ZEISS CMM with 1.2μm repeatability. Fiber alignment channel dimensions verified with optical profilometry. Transparency verified via light transmission testing. Material certification including dielectric properties and thermal data provided with each batch.
✓ Fiber array alignment holders
✓ DWDM module components
✓ Optical transceiver internal structures
✓ Fiber optic connector ferrules
✓ V-groove fiber alignment blocks
✓ Photonic packaging fixtures
✓ Optical switch components
✓ Data center interconnect devices
✓ 5G front-haul optical modules
✓ High-speed optical engine assemblies
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