Abstract
Experimental observations of the output field of the coherent kaleidoscope, a strongly overmoded rectangular optical waveguide, are presented. The detailed study, over a wide range of guide and input beam conditions, shows that the numerical results presented previously, which predicted highly ordered arrays of bright spots for certain conditions, are well confirmed in reality. While most experiments were done with longer-wavelength infrared radiation, a possible application to an optical-fiber coupler has been examined with visible light.
© 1994 Optical Society of America
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