Fiber Optical Transport Solutions

Innovating fiber optical connectivity for over two decades


Fiber optical connectivity is the backbone of global data transmission, and for more than 20 years, HUBER+SUHNER Cube Optics has been at the forefront pushing the boundaries. Our comprehensive solutions portfolio spans passive optical multiplexers and splitters, optical transceivers, and active transport technologies including optical amplifiers, demarcation devices, muxponders, and protection switches - just to name a few.

In addition to the system solutions, we also develop and manufacture micro-optical components for transceiver manufacturers, enabling next-generation performance in compact designs.


At HUBER+SUHNER Cube Optics we believe that it is crucial to work closely with the network planners, installers and operators in order to truly understand the fundamental challenges and being able to provide the best possible solution.

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    Transceivers and CUBOx Transceiver Utility Box

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  • CUBO system

    CUBO system – Active Transport Solutions

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    Network Cubes – Passive Transport Solutions

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  • Production Facilities

    Production Facilities – Clean room in Mainz, Germany

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Hollow Core Fiber Connectivity


Hollow‑core fiber is no longer a lab technology. It is live, proven, and being deployed at scale. Microsoft’s hollow‑core fiber cables with our patented LC connector are already carrying production traffic in the Microsoft Azure network, supporting cloud and AI infrastructure worldwide.

Learn more