期刊
APPLIED PHYSICS LETTERS
卷 105, 期 17, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4900781
关键词
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资金
- project Sapienza Ricerca
- ISCRA Cineca
- National Science Foundation [1029547]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1029547] Funding Source: National Science Foundation
We observed disorder induced focusing nonlinearity activated by a monochromatic light beam in optical fibers composed by two kinds of plastics. The two materials, arranged in disordered fashion, support modes with a degree of localization which increases with the intensity of the optical beam. The temporal response of the optical fiber demonstrates the thermal origin of this nonlinearity. Measurements of the localization length as a function of the input power with broadband and monochromatic inputs show the effectiveness of focusing action with respect to the case of homogeneous fibers. (C) 2014 AIP Publishing LLC.
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