Multi-Plane Light Conversion (MPLC)

Invented in 2010 in the Kastler Brossel Laboratory by the founders of Cailabs, the Multi-Plane Light Conversion (MPLC) technique is a new way to manipulate light. It was originally developed as a quantum optics tool.

From research to industry


In 2011, a scientific discussion with researchers of Alcatel-Lucent Bell Labs identified its suitability for application to optical fiber communication and led two years later to the foundation of Cailabs.

Since then, the unique technology and latest know-how of Cailabs has not only dazzled in telecommunications but also in many other areas of application (corporate IT networks, laser machining processes, etc.).


MPLC: a unique technology


Cailabs has a unique technology for manipulating the shape of the light, called MPLC.

MPLC was originally invented for multimode quantum optics, where lossless conversion of spatial modes is a key element.

It is based on the succession of transverse phase profiles, similar to highly complex lenses, separated by a specific propagation distance. MPLC is a very low loss process, which enables the combination and shaping of multiple light beams. The passive nature of this technology means it can be integrated in systems where reliability is critical.


MPLC Video




Cailabs technology is proprietary and is the subject of 19 families of patents (as at October 1st, 2019).




Beyond MPLC and the unique know-how necessary for the industrial implementation of this technology, Cailabs also has more general expertise in managing the shape of light.

This combination of skills, means that the company can claim to be a world leader in this particular sector.