Second harmonic generation and beam cleaning in optically poled multimode graded-index fibers

6533b837fe1ef96bd12a1e77

RESEARCH PRODUCT

Second harmonic generation and beam cleaning in optically poled multimode graded-index fibers

D. Ceoldo Guy Millot Vincent Couderc Umberto Minoni Alessandro Tonello Daniele Modotto Stefan Wabnitz Katarzyna Krupa

subject

Multi-mode optical fiber Materials science business.industry Second-harmonic generation Observable 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Transverse plane Nonlinear system Optics 0103 physical sciences Fiber 010306 general physics 0210 nano-technology business Beam (structure)Doppler broadening

description

Recent experimental results have confirmed that nonlinear effects in multimode graded-index (MM-GRIN) fibers lead to a wealth of observable spatiotemporal effects. In spite of the large number of modes supported by the fiber, by increasing the input power the transverse profile evolves in a clean bell-shaped beam [1, 2]. Next, the input laser line experiences a strong spectral broadening and Geometric Parametric Instability (GPl) peaks are observed [3].

year	journal	country	edition	language
2017-06-01

10.1109/cleoe-eqec.2017.8086567 http://hdl.handle.net/11379/497712

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