Conexa Tech Resources

The Future of Optical Precision: Why 2D Matrix Fiber Arrays are the New Standard

2D Matrix Fibre arrays

The demand for high-density optical interconnects and ultra-precise beam shaping has never been higher. From the rapid densification of 5G-Advanced and early 6G networks to the complex requirements of autonomous LiDAR systems, standard linear fiber arrays are no longer enough.

Enter the 2D Matrix Fiber Array. By arranging fibers in a grid (M x N) rather than a single row, these components unlock a new dimension of optical performance. When paired with Active Alignment Microlenses, they become one of the most powerful tools in the modern engineer’s toolkit.

The Conexa Advantage: Active Alignment and Microlens Integration

The core challenge of any 2D fiber array is pointing accuracy. In a high-density matrix, even a microscopic tilt in a single fiber can lead to significant signal loss or “ghosting” in the final application.

 

Conexa products solves this through Active Alignment. Unlike passive alignment – which relies on the physical dimensions of the housing – active alignment monitors the optical signal in real-time during assembly. This ensures:

Sub-0.2° Pointing Accuracy

Minimal angular deviation across the entire matrix.

This level of precision ensures that even over long distances or through complex free-space optical paths, the beam remains perfectly centered on its target without the need for manual recalibration. This extreme stability is what allows for high-efficiency coupling into Photonic Integrated Circuits (PICs) and ensures that in LiDAR applications, the spatial data remains sharp and free from parallax errors.

Minimal Tilt Errors

Critical for applications involving long-distance beam delivery or fiber-to-chip coupling.

By utilising active alignment rather than relying solely on mechanical tolerances, we can compensate for the slight geometrical imperfections inherent in fiber ferrules and microlens substrates. This precise correction ensures that the optical axis of each individual channel is perfectly perpendicular to the array plane, preventing beam “walk-off” and maintaining maximum coupling efficiency across long-distance optical paths.

Customised Microlens Arrays (MLA)

Conexa tailors the MLA based on your specific beam diameter, fiber type (SM, MM, or PM), and operating wavelength (from 850nm to 1550nm+).

Beyond simple collimation, these arrays can be engineered with specific focal lengths and pitch geometries to match the numerical aperture of your system, ensuring maximum power transfer and minimal cross-talk between high-density channels.

High-Growth Industries & SEO Applications

If you are designing for the next generation of technology, 2D matrix arrays are likely at the heart of your system. Here are the primary industries where our solutions are setting the pace:

Automotive & LiDAR

3D Mapping and Environmental Sensing.

LiDAR systems in autonomous vehicles rely on precision beam shaping. Using 2D arrays with microlenses allows for the creation of sophisticated “light grids” that provide higher resolution for vehicle monitoring and navigation.

Quantum Computing & Photonics

Fiber-to-Chip Coupling (PIC).

Photonic Integrated Circuits (PICs) require sub-micron alignment. The ability to mix Polarization-Maintaining (PM) and Single-Mode fibers in a single 2D matrix allows for complex quantum state manipulation and light delivery.

Aerospace & Defence

Multi-channel Optical Rotary Joints.

Radar systems and satellite communication payloads require signal transmission across rotating interfaces. SQS’s robust stainless steel housings ensure these arrays survive the high-vibration environments of aerospace applications.

Telecoms & Data Centres

Application: MEMS Optical Switches.

High-speed optical routing requires arrays that can handle hundreds of channels in a compact footprint. 2D arrays enable high-density switching with minimal insertion loss, essential for 800G and 1.6T data center architectures.

Customisation without Limits

One of the standout features of the Conexa 2D Matrix Array line-up is the level of “bespoke” engineering available. You aren’t limited to a catalogue; you design for the result.

Select the tabs below for further details on some of the technical capabilities:

SM, MM (Step/Grin), and PM (Panda)

Square (4×4, 10×10), Hexagonal, or fully custom

Typically < 1 µm core placement

CNC-machined Stainless Steel 304L or custom flanges

E2000, LC, SC, FC, ST, MTP/MPO, and MMC

Summary

When choosing a 2D Matrix Fiber Array, the “hidden” cost is often the time spent on alignment and integration. By opting for a solution that includes Active MLA Alignment and a Stainless Steel Flange housing, you reduce assembly time and increase the long-term reliability of your optical system.

Whether you are building a quantum sensor, a terabit switch, or a LiDAR array, Conexa provides the precision necessary to turn light into data with zero compromise.

Your application is unique - your fiber array should be too!

From bespoke matrix geometries to specialised microlens integration, Conexa is here to turn complex optical challenges into high-performance reality.

Download our technical datasheets or contact our team today to discuss your requirements for Active Alignment Microlenses and 2D Collimator Arrays.