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Electro-optically controlled divided-pulse amplification

 
: Stark, H.; Müller, M.; Kienel, M.; Klenke, A.; Limpert, J.; Tünnermann, A.

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Optics Express 25 (2017), No.12, pp.13494-13503
ISSN: 1094-4087
English
Journal Article, Electronic Publication
Fraunhofer IOF ()

Abstract
A novel technique for divided-pulse amplification is presented in a proof-ofprinciple experiment. A pulse burst, cut out of the pulse train of a mode-locked oscillator, is amplified and temporally combined into a single pulse. High combination efficiency and excellent pulse contrast are demonstrated. The system is mostly fiber-coupled, enabling a high interferometric stability. This approach provides access to the amplitude and phase of the individual pulses in the burst to be amplified, potentially allowing the compensation of gain saturation and nonlinear phase mismatches within the burst. Therefore, this technique enables the scaling of the peak power and pulse energy of pulsed laser systems beyond currently prevailing limitations.

: http://publica.fraunhofer.de/documents/N-455790.html