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Applied Photonics > Research and Development > R&D on Fiber lasers and related activities > Applications

Micro-machining

ALPINE: Advanced Lasers for Photovoltaic INdustrial processing Enhancement

In this FP7 EU project an adjustable pulsed source operating in the sub-picosecond regime is being developed for scribing of thin film solar cells. Multitel is leader of the workpackage dedicated to the laser sources design that include amplification with large mode area flexible and rod-type photonic crystal fibres. The fibre lasers developed here will be integrated in a scribing machine and tested for CdTe and CIGS solar cells processing.

IMPROV: Integrated Mid-infrared high Power source for Resonant ablation of Organic based photoVoltaic devices

The lasers developed in the FP7 project IMPROV will be applied to resonant infrared ablation. In order to reach the 3 to 11 µm region, a Thulium fibre laser source combined with an OPO system will be used. A few microjoules per pulse are expected to have sufficient energy for ablation of orhanic materials.

SINEAD: SIntering of Nanoparticles onto organic flExible lAyers for Dye solar cells

This project is a ERA-NET MATERA+ collaboration between Italy and Belgium. In this project, the best process for sintering of TiO2 nano-particles onto glass and polymeric substrates have to to be defined for high efficiency dye solar cells.

Medical and Spectroscopy

PLASMA09: Picosecond pulse fibre LASer for Micro-machining Application

PLASMA09 is a EUREKA project on short pulse high repetition frequency Ytterbium fibre lasers for micro-machining and spectroscopy. The fibre laser will be combined in the one hand with an Optical Parametric Oscillator for IR imaging and in the other hand with critically phase matched crystals for frequency doubling and tripling for material processing. In both cases the lasers need to exhibit narrow linewidth spectrum, perfectly single-mode emission and high peak power. 

NEXTGENPCF: NEXT GENeration Photonic Crystal Fibres

In the frame of the project NextGenPCF (project funded in the 6th Framework Program of the European Commission) Multitel Applied Photonics Department has contributed in the realisation of Raman lasers and supercontinuum sources by providing high power, specifically designed, pulsed and CW fibre laser sources.

For the Raman laser sources, Multitel developed an Ytterbium, CW pump source adapted to the PCF Raman cavity designed by the partners of the project (University of Lillle, Osyris and Draka). The source was dedicated to ARMD (Age-Related Macular Degeneration) treatment. Clinical tests are being performed and future commercialisation may come out through the company OSYRIS.

For the supercontinuum generation, two types of lasers have been developed in the project: gain-switched and mode-locked sources. These lasers permitted to define the best parameters for the generation of a broad supercontinuum spectrum. The laser coupled with the fibres developed in the consortium (by the partners University of Limoges, Draka and LEUKOS) are very promising for a wide range of applications. One of the applications targeted in the project was flow cytometry. A joint patent based on the results achieved in the project has been filled and is under evaluation.

In both cases, Multitel also worked on the interface between the fibre laser and the Photonic Crystal Fibres and on the Raman and Supercontinuum sources tests and characterisation.

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