Technology

Our Technology

A key competences of us and fundamental for the fiber-optic components is the packaging and assembly of optical sub-components, such as collimators, optical interference filters or photo detectors. Over many years we have fostered our proprietary packaging technology which relies on a Polymer Optical Bench (POB).

Microinjection Molding and Passive Assembly


At CUBO, we have perfected the injection molding of polymers to very high precision. We achieve a surface roughness on replicated polymer parts within the range of 5nm, furthermore is the structural accuracy better than 150nm. The resulting Polymer Optical Benches (POB) feature extremely high precision alignment structures.

With our precision within nanometer scale, we enable a passive assembly of optical sub-components. In comparison to classic assemblies the alignment of i.e. a collimator towards a fiber does not need to be actively controlled by measuring the transmitted light through the assembly (to find the optimum position for both). The optical elements are placed passively onto the alignment structures in the POB.

A passive assembly like this does not only reduce manufacturing efforts, it allows tremendously reduced component sizes as well.

This is achieved due to the fact that there are no bulky test heads required in the beam paths. It allows the sub-components to be placed extremely close to each other. 

The components are up to 100 times smaller than competing products based on classic assemblies.

Integration of Active Elements


With this platform technology, we utilize the integration and combination of various optical elements to achieve a broad variety of functions:

First of all, there is the optical wavelength division multiplexers (WDM) in a miniature size. Those passive WDMs not only feature a small size. They furthermore are leading edge in terms of reliability and sturdiness. Not only qualified by Central Office Telcordia Standards, they also exceed even the uncontrolled environment reliability requirements. With these excellent capabilities, our muxes are employed in even the harshest conditions like deserts, polar regions, mining, defense or non-pressure controlled environments 5000m below sea level.  

The POB can also host other passive elements such as various filters, mirrors, or semi-mirrors and is tailored to work in a wide optical spectrum. Ranging from visible to infrared, it is used in telecoms to ultraviolet light in sensing applications.

We also integrated active elements, such as lasers, photo detectors, trans-impedance amplifiers etc. into the POB and combined them with multiplexing functionality. Thus enabled multi-lambda detection devices used in sensing, test and measurement applications.
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