Focusing and scanning light through a multimode optical fiber using digital phase conjugation

We demonstrate for the first time to our knowledge a digital phase conjugation technique for generating a sharp focus point at the end of a multimode optical fiber. A sharp focus with a contrast of 1800 is experimentally obtained at the tip of a 105 mu m core multimode fiber. Scanning of the focal point is also demonstrated by digital means. Effects from illumination and fiber bending are addressed. (C)2012 Optical Society of America


Published in:
Optics Express, 20, 10583-10590
Year:
2012
Keywords:
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 Record created 2012-06-08, last modified 2018-03-17


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