Fiber Array (FA) 4CH 8° Side-Polished
Fiber array (FA) 4 channels (250μm), 1 × 4-fiber ribbon assembly with an 8° side-polished endface, array size 10×2.5×2.5mm, pigtail length 1.5 or 2.5m.
Description
Fiber Array (FA) is an assembly in which multiple optical fibers are arranged at a defined channel pitch and precisely fixed onto a V-groove substrate. This model assembles a single 4-fiber ribbon onto the V-groove substrate at a defined pitch and polishes it into an 8° side-polished endface, which significantly reduces the coupling alignment loss of the waveguide device.
Product Features
- 4-channel ribbon structure with an 8° side-polished endface and controlled polishing quality
- Suits low channel-count splitters and optical device coupling
- Channel pitch accuracy and endface quality are controlled, with good batch-to-batch consistency
- Ribbon color and pigtail length can be customized to requirement
Specifications
| Channel Count | 4 CH |
|---|---|
| Channel Pitch | 250 μm |
| Fiber Configuration | 1 × 4-fiber ribbon |
| A (reference face length) | 10±0.2 mm |
| B (array width) | 2.5±0.05 mm |
| C (array height) | 2.5±0.05 mm |
| Pigtail Length L | 1.5 or 2.5 m (customizable) |
| Ribbon Color | Blue, Orange, Green, Brown |
| Endface Form | 8° side-polished endface (customizable) |
| Reliability | Meets TC (thermal cycling) and PCT (pressure cooker) test requirements |
FA Range for PLC Splitters
| Channel | Fiber Configuration | A (mm) | B (mm) | C (mm) | L (m) | Ribbon Color |
|---|---|---|---|---|---|---|
| 2CH (250μm) | 2 single bare fibers | 10±0.2 | 2.5±0.05 | 2.5±0.05 | 1.5 or 2.5 | Clear |
| 4CH (250μm) | 1 × 4-fiber ribbon | 10±0.2 | 2.5±0.05 | 2.5±0.05 | 1.5 or 2.5 | Blue, Orange, Green, Brown |
| 8CH (127μm) | 2 × 4-fiber ribbons | 10±0.2 | 2.5±0.05 | 2.5±0.05 | 1.5 or 2.5 | Blue, Orange, Green, Brown ×2 |
| 8CH (250μm) | 1 × 8-fiber ribbon | 10±0.2 | 3.0±0.05 | 2.5±0.05 | 1.5 or 2.5 | Blue, Orange, Green, Brown, Gray, White, Red, Black |
| 16CH (127μm) | 2 × 8-fiber ribbons | 12±0.2 | 3.5±0.05 | 2.5±0.05 | 1.5 or 2.5 | Blue, Orange, Green, Brown, Gray, White, Red, Black ×2 |
| 32CH (127μm) | 4 × 8-fiber ribbons | 12±0.2 | 5.7±0.05 | 2.5±0.05 | 1.5 or 2.5 | Blue, Orange, Green, Brown, Gray, White, Red, Black ×4 |
| 64CH (127μm) | 8 × 8-fiber ribbons | 12±0.2 | 9.8±0.1 | 2.5±0.05 | 1.5 or 2.5 | Blue, Orange, Green, Brown, Gray, White, Red, Black ×8 |
Typical Applications
- Input / output coupling of PLC splitters
- Packaging of small passive optical devices
- Fiber sensing and test fixtures
Materials & Process
- V-groove substrate: quartz (JGS2, Borofloat 33, etc.) or silicon, precision-grooved to form V-shaped channels
- Fiber: standard singlemode fiber or polarization-maintaining fiber; pigtails or patch cords can be added per application
- Fixing and bonding: after the fibers are placed in the V-grooves they are secured with low-shrinkage, low-stress UV or epoxy adhesive
- Endface polishing: endface flatness and fiber height are controlled; 0°, 42.5° and protruding-fiber endfaces are supported
Note: A / B / C are array reference-face dimensions — the customer drawing governs. Ribbon color and pigtail length can be customized to requirement.
Customization and quotation: this product is built to drawing. Channel count, pitch, substrate size and material, and endface angle can all be specified. Submit your drawing or requirement through the contact page and we will arrange a drawing review and sample build; pricing is quoted by specification and quantity — enquiries are welcome.
Why Choose FiberPioneer
In-House Production
Precision grooving, ultra-precision fiber assembly and endface grinding & polishing all run on our own cleanroom lines, with parameterised control and traceable process data.
Backed by an Invention Patent
In 2026 we acquired the invention patent “A manufacturing method for precise alignment of multi-core optical fibers”, supporting continuous iteration on multi-core, high-density fiber alignment.
Sampling to Pilot Run
Drawing review, rapid sampling and small-batch pilot production — special angles and profiled structures customized to your drawing.
Need a datasheet, sample or quotation? Submit your requirements via the contact page and we will reply shortly.
Additional information
| Channel Count | 4 CH |
|---|---|
| Channel Pitch | 250 μm |
| Fiber Configuration | 1 × 4-fiber ribbon |
| Pigtail Length | 1.5 m, 2.5 m |
| Endface Form | 8° side-polished, customizable |




