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Femtosecond induced fiber mode filter

: Voigtländer, Christian; Williams, Robert J.; Withford, Michael; Thomas, Jens U.; Nolte, Stefan; Tünnermann, Andreas

Fulltext ()

OSA technical digest. Online resource (2012), CTh4G.1
Conference on Lasers and Electro-Optics (CLEO) <2012, San Jose/Calif.>
Conference Paper, Electronic Publication
Fraunhofer IOF ()

We demonstrate a mode filter by inducing a short distance refractive index increase around the fiber core. The guidance of the fiber is modified and higher order modes can be suppressed.