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Temporal contrast enhancement of a femtosecond fiber CPA system by filtering of SPM broadened spectra

: Buldt, J.; Müller, M.; Klas, R.; Eidam, T.; Limpert, J.; Tünnermann, A.


Hartl, I. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Fiber Lasers XV: Technology and Systems 2018 : 29 January - 1 February 2018, San Francisco, California
Bellingham, WA: SPIE, 2018 (Proceedings of SPIE 10512)
ISBN: 978-1-5106-1509-0
ISBN: 978-1-5106-1510-6
Paper 105120W, 6 S.
Conference "Fiber Lasers - Technology and Systems <15, 2018, San Francisco/Calif.>
Fraunhofer IOF ()

We present a novel approach for temporal contrast enhancement of energetic laser pulses by filtered SPM broadened spectra. A measured temporal contrast enhancement by at least 7 orders of magnitude in a simple setup has been achieved. This technique is applicable to a wide range of laser parameters and poses a highly efficient alternative to existing contrast-enhancement methods.