Fluence homogenization of a 240 J-diode-laser pump system for a multi-pass solid state laser amplifier

Autor:	Mathias Siebold, Joachim Hein, Marco Hornung, M. Schnepp, S. Podleska, R. Bödefeld, Roland Sauerbrey
Rok vydání:	2005
Předmět:	Materials science Physics and Astronomy (miscellaneous) business.industry General Engineering General Physics and Astronomy Laser pumping Laser Fluence Collimated light law.invention Optical pumping Optics Solid-state laser law Femtosecond business Diode
Zdroj:	Applied Physics B. 81:615-619
ISSN:	1432-0649 0946-2171
DOI:	10.1007/s00340-005-1942-y
Popis:	Within the POLARIS project multi-pass amplification to the 10 joule level for a femtosecond CPA laser system has been achieved by diode-pumping an Yb3+ doped fluoride-phosphate glass disk with a total energy of 240 J. The collimated light of 40 diode stacks is focussed onto a circular area of the glass disk with a diameter of 18 mm. A two-sided ring shaped setup is used for axially symmetric pumping. We developed a computer aided optimization routine for the positioning of single pump foci to gain a smooth homogeneously distributed, top-hat shaped pump profile. The homogeneity of the pump light distribution was improved substantially by this new method.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4adb3198cbefef7e491f38e4ea32bb5e https://doi.org/10.1007/s00340-005-1942-y Zobrazit plný text záznamu Plný text ve formátu PDF