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Proceedings Paper

Scaling of the diode-array-pumped solid state lasers by self-imaging
Author(s): Alexey Yu. Okulov
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Paper Abstract

.It is well known that ciode-pumped solid-state lasers exibit a high efficiency at low and moderate powers elny pumped by single laser diode aioig optical axis of the resonator. The futher lncreaslng c)f the power s being achieved now by diode array side--pumpiiig of neodilriiulrL rods. But the efficiency of this type of pumping iS somewhat smaller because of nonideal overlapping of the inversion profile and the desirable iasnn rnode(TEM )."i.. This drawback could be 0 0 avoided at moderate powers by the use of the end-pumping by diode-arrays or several diodes that results in a highly efficient fundamental-mode operation/2/. Nevertheless this kind of the end-pumping leads to significant heating of the active elelrient/3/, because the pumped region of the crystal should be sufficiently small to select TEM mode. These are the reasons 00 which limits the output power in the standard end-pumping scheme, although the use of the moving slabs and rotating disks could overcome the some of the above difficulties //3/ The alternative approach is to refuse from Gaussian beams paradigm and to select spatially periodic modes using the phenomenon of the seif-imaging/4/.

Paper Details

Date Published: 5 January 1994
PDF: 12 pages
Proc. SPIE 2041, Mode-locked and Other Ultrashort Laser Designs, Amplifiers, and Applications, (5 January 1994); doi: 10.1117/12.165635
Show Author Affiliations
Alexey Yu. Okulov, P.N. Lebedev Physical Institute (Russia)


Published in SPIE Proceedings Vol. 2041:
Mode-locked and Other Ultrashort Laser Designs, Amplifiers, and Applications
Michel Piche; Paul W. Pace, Editor(s)

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