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 μm core multimode fiber. Scanning of the focal poi...

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Bibliographic Details
Published inOptics express Vol. 20; no. 10; p. 10583
Main Authors Papadopoulos, Ioannis N., Farahi, Salma, Moser, Christophe, Psaltis, Demetri
Format Journal Article
LanguageEnglish
Published United States 07.05.2012
Subjects
Crystallization
Endoscopy - methods
Equipment Design
Fiber Optic Technology
Holography - methods
Lasers
Light
Lighting
Nephelometry and Turbidimetry
Optical Fibers
Optics and Photonics - methods
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Summary: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 μm core multimode fiber. Scanning of the focal point is also demonstrated by digital means. Effects from illumination and fiber bending are addressed.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.20.010583