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2D FAU product portfolio

A focused phase-one lineup built around 125 µm fiber on a 250 µm grid, with fine-pitch and custom variants to cover emerging interconnect requirements.

FAU-2D 250 FAU-2D 125 FAU-2D Custom
Standard 125 µm fiber 250 µm pitch

FAU-2D 250

The standard 2D Fiber Array Unit. It seats 125 µm fibers in precision v-grooves on a 250 µm two-dimensional grid — the density that lets a full VCSEL or photodiode array couple directly to fiber, while keeping the pitch manufacturable at high yield.

250 µm

Key specifications

Fiber type125 µm single-mode / multimode
Array pitch250 µm (x and y)
Channel counts2×2 · 4×4 · 8×8 · 12×12 · 16×16 (≤256 ch)
V-groove pitch accuracy±0.5 µm (typical)
Fiber position accuracy±1.0 µm (typical)
End-face finishPolished / angle-polished (8°)
SubstrateSilicon v-groove · glass / fused silica base

Representative phase-one specifications. Final values are confirmed per application during qualification.

Fine pitch 125 µm fiber 125 µm pitch

FAU-2D 125

The fine-pitch array places fibers on a 125 µm grid — adjacent-fiber spacing — for the highest channel density per unit area. It targets the most space-constrained coupling interfaces, where every square millimetre of optical surface must be used.

125 µm

Key specifications

Fiber type125 µm single-mode / multimode
Array pitch125 µm (x and y)
Channel countsHigh-density 2D layouts
V-groove pitch accuracy±0.5 µm (typical)
End-face finishPolished / angle-polished (8°)
SubstrateSilicon v-groove · glass / fused silica base
Target useMaximum density coupling interfaces

Representative phase-one specifications. Final values are confirmed per application during qualification.

Custom Joint development

FAU-2D Custom

For interfaces that do not fit a standard grid, Aeropex co-develops application-specific arrays — custom pitch, channel layout, substrate materials and end-face finish, designed against your optical engine and qualification plan.

customer-defined layout

Configurable parameters

Array pitchCustom (125 µm · 250 µm · mixed)
Channel layoutCustomer-defined rows × columns
Fiber type125 µm SM / MM · speciality fiber on request
SubstrateSilicon v-groove · glass / fused silica
End-face finishPolished / angle-polished / custom
EngagementTechnical review → prototype → qualification

Detailed process, assembly and test data are provided under NDA during joint development.

Discuss a custom array →

Portfolio at a glance

A side-by-side view of the phase-one lineup for quick evaluation.

FAU-2D 250 FAU-2D 125 FAU-2D Custom
Pitch250 µm125 µmCustom
Fiber125 µm SM/MM125 µm SM/MMCustom / speciality
Channelsup to 16×16high densitycustomer-defined
Pitch accuracy±0.5 µm class±0.5 µm classper spec
PositioningStandard densityMaximum densityApplication-specific

Specifications are representative and confirmed during qualification. Photographs and dimension drawings are added as they are released for publication.