Propagative cascading at the origin of very large cubic nonlinearities in quadratic polar molecular media

Author

Vidakovic, P. ; Zyss, J. ; Kim, D. ; Toruellas, W. ; Stegeman, G.

Author_Institution

Lab. de Bagneux, CNET, Bagneux, France

fYear

1994

fDate

7-9 Sep 1994

Firstpage

830

Lastpage

835

Abstract

Very large nonlinear shifts ranging from π/4 to π/2 corresponding to n₂ as high as 10^-12 cm²/W are observed in single crystal cored fibers of 4-(N,N-dimethylamino)-3-acetamidonitrobenzene (DAN). Self-phase modulation and direct interferometric measurements have unambiguously ascribed this behaviour to a cascading sequence of second harmonic generation followed by down frequency conversion

Keywords

nonlinear optical susceptibility; nonlinear optics; optical frequency conversion; optical harmonic generation; optical modulation; organic compounds; 4-(N,N-dimethylamino)-3-acetamidonitrobenzene; direct interferometric measurements; down frequency conversion; propagative cascading; quadratic polar molecular media; second harmonic generation; self-phase modulation; single crystal cored fibers; very large cubic nonlinearities; very large nonlinear shifts; Crystallization; Differential equations; Electrooptic modulators; Frequency conversion; Integral equations; Optical harmonic generation; Optical interferometry; Optical modulation; Optical polymers; Optical signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1994. (ISE 8), 8th International Symposium on

Conference_Location

Paris

Print_ISBN

0-7803-1940-0

Type

conf

DOI

10.1109/ISE.1994.515234

Filename

515234