Influence of surface roughness on the bandwidth of optical multimode waveguides analyzed by modal noise theory Stübbe, Oliver Bierhoff, Thomas Schrage, Juergen Mrozynski, Gerd Ambs, Pierre Beyette, Jr., Fred R. Modal noise is an undesired modulation of the guided light intensity in a multimode waveguide. Applying the frequency correlation function the frequency dependence of this noise as well as the bandwidth of a multimode waveguide can be estimated. In this paper the existing model of the frequency correlation function for a waveguide with smoothed dielectric interfaces is enhanced to analyze the influence of surface roughness on the achievable bandwidth. This surface roughness is caused by the manufacturing process of the waveguides. SPIE 2003 info:eu-repo/semantics/other doc-type:other text http://purl.org/coar/resource_type/c_1843 https://www.th-owl.de/elsa/record/11201 Stübbe O, Bierhoff T, Schrage J, Mrozynski G. <i>Influence of Surface Roughness on the Bandwidth of Optical Multimode Waveguides Analyzed by Modal Noise Theory</i>. Vol 5181. (Ambs P, Beyette, Jr. FR, eds.). SPIE; 2003. doi:<a href="https://doi.org/10.1117/12.505775">10.1117/12.505775</a> eng info:eu-repo/semantics/altIdentifier/doi/10.1117/12.505775 info:eu-repo/semantics/altIdentifier/issn/0277-786X info:eu-repo/semantics/altIdentifier/isbn/0-8194-5054-5 info:eu-repo/semantics/closedAccess