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Lannion, France

Agency: Cordis | Branch: FP7 | Program: CP | Phase: ICT-2011.3.5 | Award Amount: 3.63M | Year: 2011

The project CHARMING aims at developing compact and fully fibred visible lasers for fluorescencespectroscopy, high resolution confocal microscopy and tryptophan imaging. These applications requirepulsed operation (about 100 ps at repetition rates from 1 to 80 MHz), various wavelengths in the visible(from 515 to 630 nm typically) and in the UV (for tryptophan imaging), high average power (up to 500 mW for high resolution) with a polarisation maintaining fibre delivery when possible.These wavelengths cannot, in most of the cases, be addressed directly. Therefore, in order to respond tothese applications with fibre based solutions different technological building blocks have to be developed.The project CHARMING will focus on the development of semiconductor laser sources in the 1.1 m to1.2 m band, Bismuth and Raman amplifiers, pulse gating and wavelength conversion fibre basedsolutions. This last function is certainly the more challenging in the project.Periodically Poled Singlemode Fibres (PPSF) for Second Harmonic Generation (SHG) have beenproven at laboratory scale but breakthrough approaches are required for this technology to be integrated in future systems. Various innovative approaches, in particular the use of Micro-structured Optical Fibres (MOF), will be investigated to convert this promising technology into potential products.SHG and other functions developed in CHARMING will be integrated in gain-switched and modelockedlasers at different wavelengths in the visible. The compatibility of these sources with the requirements of the imaging applications targeted in the project will be demonstrated.Finally, the performances of the devices will be pushed beyond these specifications (in the Watt level)for targeting a broader potential impact (like for instance, applications in micromachining).

A method of manufacturing a radiation-resistant optical fiber and a thus-obtained radiation-resistant optical fiber, the method includes the following steps:

Agency: Cordis | Branch: FP7 | Program: CP-IP | Phase: NMP-2008-4.0-4 | Award Amount: 15.74M | Year: 2009

The LIFT project will establish international leadership for Europe in the science, application and production technologies for material processing by fibre lasers through the development of innovative laser sources. Major advances beyond the state of the art are planned: The cold-ablation fibre laser, based on ultra-short pulses, will open an entirely new market (100 mill. p.a.) for laser processing of ceramics. The extreme high-power fibre laser will enlarge the EUV lithography market (500 mill. p.a.) to include fibre lasers. The visible RGB fibre laser will produce the first high-brilliance source for laser projection displays (15 mill. p.a.). New future-oriented manufacturing tools based on higher-power pulsed fibre lasers (80 mill. p.a.). The high-reliability laser for large-scale manufacturing with High Speed Laser Remote Processing - means a new level of performance for 2kWatt materials-processing lasers with raised MTBF to 50.000 hours (accessible market 1 bill. p.a.). The Horizontal integration and networking in Europes high brilliance laser industry in this project will enable a greater market share for existing applications, create new areas of exploitation for manufacturing, and build a European network of component suppliers, laser manufacturers, universities and research institutes. As a result, LIFT will cause the following results to emerge: 1. Europe would take advantage of novel laser sources to be employed for various processing applications, many of which cannot even be treated by todays lasers. 2. European companies will benefit by the exploitation of the knowledge by the LIFT consortium in the field of fibre lasers, thus creating new markets and improving productivity in existing ones, thus building the competitiveness and the technological role of Europe; 3. The society as a whole would benefit from the results of LIFT, because in many sectors the further development of laser processing is crucial for the improvement of the quality

Kieleck C.,French German Research Institute of Saint Louis | Berrou A.,French German Research Institute of Saint Louis | Donelan B.,French German Research Institute of Saint Louis | Cadier B.,IXFiber | And 2 more authors.
Optics Letters | Year: 2015

An efficient actively Q-switched Tm3+-doped single-oscillator fiber laser based on a silica polarization-maintaining (PM) double-clad fiber provided average powers of 23 W at pulse widths of 65 ns at 40 kHz pulse repetition frequency. It was used to directly pump a ZnGeP2optical parametric oscillator (OPO). Up to 6.5 W were generated in mid-IR wavelength range. © 2015 Optical Society of America. Source

Bartolacci C.,CNRS Center for Research on Ions, Materials and Photonics | Laroche M.,CNRS Center for Research on Ions, Materials and Photonics | HerveGilles,CNRS Center for Research on Ions, Materials and Photonics | Girard S.,CNRS Center for Research on Ions, Materials and Photonics | And 2 more authors.
Optics Express | Year: 2010

We demonstrate 308 mW of single-mode laser emission at 464 nm from a frequency doubled picosecond fiber based Master Oscillator Power Amplifier (MOPA). The laser system consisted of a gain-switched and spectrally narrowed Fabry-Perot laser diode emitting at 928 nm, which was amplified in a two-stage amplifier based on W-type double-clad Nddoped fibers. Output pulses with a duration of 90 ps at a repetition rate of 41 MHz were frequency-doubled in a periodically poled MgO-doped Congruent Lithium Niobáte. A conversion efficiency of 14.8% was achieved in single-pass configuration. ©2009 Optical Society of America. Source

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