The growth of the optical telecommunication market is accompanied by the development of innovative technologies for wavelength routing in all-optical networks and by a buoyancy of the associated business; (rising of new startups, companies buy-outs ... ).

Industrial activity is increasing in large groups and there are also many startups growing up in Europe in the field of optical components for telecommunication (such as Kymata, HighWave, Teem Photonics ... ). Moreover, new startups are launched (such as Optical Micro Devices in United Kingdom, Sercalo in Switzerland) and large groups are currently acquiring a full portfolio of different technologies (integrated optics, MOEMS, fiber optics ... ) through companies buy-outs.

This report is an overview of European activities in the fields of components for wavelength-handling in all-optical networks for telecommunication (routing, splitting, multiplexing, add-dropping, attenuating ... ).