Johan Nilsson
(University of Southampton)
28/06/2013, 09:30
The ICAN concept of coherent combination of femtosecond pulses at high energies presents new challenges on the optical amplifiers in terms of fidelity, reliability, efficiency, and cost. The more mature continuous-wave amplifiers for coherent combination, femtosecond amplifiers, high-power amplifier systems, and not least telecom amplifiers lay a very strong foundation for the ICAN...
Jens Limpert
(Friedrich-Schiller University Jena)
28/06/2013, 09:50
The presentation will start with a brief review about the history and achievements of advanced rod-type rare earth doped fibers and their use in ultrafast fiber laser systems followed by an introduction to coherent addition of multiple individual emissions as a performance-scaling concept. To further enhance the performance towards multi-Joule pulse energy and towards Megawatt average power in...
Tino Eidam
(Friedrich-Schiller University Jena)
28/06/2013, 10:15
The demand for a huge number (i.e. up to millions) of channels for a fiber laser based particle accelerator originates from the energy limitation of a single fiber emission rather than average-power capabilities of rare-earth-doped fibers. Therefore, it is possible to reduce the required number of channels by 2-3 orders of magnitude by operating the fiber amplifiers at a higher repetition rate...
Dr
Laurent Lombard
(ONERA)
28/06/2013, 10:55
Coherent Beam Combining allows overcoming the nonlinear and damage thresholds that limit the output power/energy of fiber amplifiers, thus enabling new applications as in the ICAN project. We will briefly review the main coherent beam combining techniques useful for ICAN with an insight into optical efficiency, requirements and cost.
Dr
Arnaud Brignon
(THALES)
28/06/2013, 11:05
The challenge of producing the next generation of particle accelerators, both for fundamental research, or for more applied tasks such as proton therapy or nuclear transmutation has been taken up by the high intensity laser community. To reach the ultrahigh peak power and high average power requirements of these applications, coherent beam combination of thousands of fiber amplifiers has to be...
Thomas Schreiber
(Fraunhofer Society Germany)
28/06/2013, 11:15
The ICAN laser proposal aims for multi-100 kW of average power. Optical Components handling such power have to be identified in the future. In this contribution, the relevant components and their power handling is reviewed. Additionally, the physical background for thermal- and nonlinear limitations are given and strategies and perspectives of reducing these effects are discussed.
Dr
Louise Walker
(Lightwrks Ltd)
28/06/2013, 11:35
We provide conceptual views of how a multi-joule, kW laser system could be built with many thousand channels from piece parts, and extended to suit the application in mind. The choices and main challenges of the optical and mechanical architectures are discussed with reference to power budgets and costs.
