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Towards the minimum pulse-duration from mJ-class fiber CPA-systems

 
: Schimpf, D.N.; Limpert, J.; Tünnermann, A.

:

Optical Society of America -OSA-, Washington/D.C.:
Advanced Solid-State Photonics, ASSP 2010. CD-ROM : 31.1.-3.2.2010, San Diego, CA, USA
Washington, DC: OSA, 2010 (OSA Technical digest series)
ISBN: 978-1-55752-880-3 (online)
Paper LSMD4
Technical Conference "Advanced Solid-State Photonics" (ASSP) <2010, San Diego/Calif.>
English
Conference Paper
Fraunhofer IOF ()

Abstract
The extension of the signal bandwidth of the amplified pulse is a key option to increase the peak-power from Yb-doped fiber CPA-systems. We analyze the spectral gain characteristics of state-of-the-art Yb-doped fiber amplifiers with regard to the broadest gain-bandwidth. While for input pulses with bandwidths < 5 nm a spectral center around 1035 nm is beneficial, longer central wavelengths (~ 1055 nm) are advantageous for broader signal bandwidths (~ 10 nm). It is shown that this spectral management is valid even if the impact of self-phase modulation is considered. The interplay of saturation-induced pulse-distortion and the spectral behavior of the gain are also discussed.

: http://publica.fraunhofer.de/documents/N-350138.html