CUBO’s Technology


    Besides to market fiber-optic components, our capabilities at CUBO are the integration and combination of fiber-optic components in higher-level modules, sub-systems and systems.

    One of our core competences 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 years we have fostered a proprietary packaging technology which relies on a Polymer Optical Bench (POB).

    Microinjection Molding and Passive Assembly - POB

    With CUBO, we have brought the injection molding of polymers to an extreme state of precision. Not only we achieve a surface roughness on replicated polymer parts within the range of 5nm, furthermore is the structural accuracy better than 150nm. This microinjection molding therefore, allows us the production of the Polymer Optical Benches (POB), which feature high precision alignment structures.

    With those providing a precision in a nanometer scale, a passive assembly of optical sub-components is enabled. In contrast 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), but is achieved by placing the optical elements passively onto the alignment structures in the POB.

    A passive assembly like this does not only contribute to reduce any assembly efforts, but allows tremendously reduced component sizes.

    This is possible, as during the assembly no bulky test heads are required in the beam paths, the sub-components may be placed extremely close to each other. It ends up with components which are up to 100 times smaller than competing products based on classic assemblies.

  • Integration of Active Elements

    Using 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. Possessing 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.

    The latest generation, the multi-lambda Receiver / Transmitter Optical Sub-Assemblies (ROSAs / TOSAs) are the essence and driving force behind high-end 40Gbps and 100Gbps second generation pluggable transceivers.