5 January 1994 Scaling of the diode-array-pumped solid state lasers by self-imaging
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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/.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexey Yu. Okulov, Alexey Yu. Okulov, } "Scaling of the diode-array-pumped solid state lasers by self-imaging", Proc. SPIE 2041, Mode-locked and Other Ultrashort Laser Designs, Amplifiers, and Applications, (5 January 1994); doi: 10.1117/12.165635; https://doi.org/10.1117/12.165635
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