Wolff, S. Messerschmidt, D. Fouckhardt, H. Media 1: Fourier-optical selection of higher order transverse modes in broad area lasers Originally published in Optics Express on 02 August 1999 (oe-5-3-32) media;oe;Optics Express;mode;area lasers;02 August 1999;Fourier-optical 1999-08-02
    https://opticapublishing.figshare.com/articles/media/Media_1_Fourier-optical_selection_of_higher_order_transverse_modes_in_broad_area_lasers/4952324
10.1364/OE.5.000032.m001