Spatial beam cleaning in quadratic nonlinear medium

Katarzyna Krupa, R. Fona,Alessandro Tonello,Alexis Labruyère,Badr Mohamed Ibrahim Shalaby,Stefan Wabnitz,Fabio Baronio,Alejandro B. Aceves,Guy Millot,Vincent Couderc

Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF) (2018), paper NpTh1C.5（2018）

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摘要

We show experimentally that a laser beam scrambled by propagation in a short segment of multimode fiber may be cleaned by the nonlinear propagation in KTP cristal with type-II second-harmonic generation.

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关键词

spatial beam cleaning,quadratic nonlinear medium

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