, Volume 72, Issue 2, pp 167-170

Generation of Laguerre–Gaussian modes in fiber-coupled laser diode end-pumped lasers

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A technique has been developed for the generation of Laguerre–Gaussian (LG0,l) modes in a fiber-coupled laser diode end-pumped microchip laser. A theoretical model is also developed to predict how the oscillation of LG0,l modes is affected by the pump position, the pump size and the cavity mode size. With a 1-W fiber-coupled diode, the highest-order LG0,l mode that can be generated is l=23.

Received: 8 June 2000 / Revised version: 2 July 2000 / Published online: 20 September 2000