Wide beam stabilities and instabilities in one dimensional arrays of Kerr-nonlinear channel waveguides

• Autorzy: Meier J. , Christodoulides D. N. , Stegeman G. I. , Yang H. , Salamo G. , Morandotti R. , Aitchison J. S. , Silberberg Y.
• Konferencja: International Workshop on Nonlinear Optics Applications : (7 ; 17-20.06.2004 ; Konstancin, Poland)
• Języki publikacji: EN

Abstrakty

EN

The propagation of wide (plane-wave like) and narrow high intensity beams at 1550 nm was investigated in 1D arrays of AlGaAs channel waveguides which are nearest-neighbour coupled via evanescent fields. Spatial diffraction (beam spreading) by evanescent field coupling leads to dispersion relations that are periodic with propagation direction and hence exhibit regions of both normal and anomalous diffraction. This results in propagation directions in which filamentation of high intensity beams with superimposed noise occurs, and other regions in which these beams are stable against noise. Both cases were observed experimentally, and the modulation instability gain was measured versus the spatial frequency of the noise. Good agreement with theory was found.

Słowa kluczowe

EN

discrete nonlinear optics; modulation instability; solitons

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2005
• Tom: Vol. 13, No. 2
• Strony: 75--84
• Opis fizyczny: Bibliogr. 26 poz., il., rys., wykr.

Twórcy

autor

Meier J.

• College of Optics & Photonics: CREOL & FPCE, University of Central Florida, Orlando, FL 32816, USA

autor

Christodoulides D. N.

• College of Optics & Photonics: CREOL & FPCE, University of Central Florida, Orlando, FL 32816, USA

autor

Stegeman G. I.

• College of Optics & Photonics: CREOL & FPCE, University of Central Florida, Orlando, FL 32816, USA

autor

Yang H.

• Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA

autor

Salamo G.

• Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA

autor

Morandotti R.

• Institut National de la RecherchÈ Scientifique, University du QuÈbec, Varennes, QuÈbec, J3X 1S2, Canada

autor

Aitchison J. S.

• Department of Electrical and Computer Eng., University of Toronto, Toronto, Ontario, M5S 3G4, Canada

autor

Silberberg Y.

• Department of Physics of Complex Systems, The Weizmann Institute of Science, 76100 Rehovot, Israel

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