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Proceedings Paper

Nonlinear coupling and propagation in poly-phenyl-acetylene optical waveguides
Author(s): Francesco Michelotti; Andrea Giancola; F. Cataldo; Mario Bertolotti
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Paper Abstract

We describe, in the present paper, the production and optical characterization of thin noncrystalline waveguiding films of the polar organic polymer poly-phenyl-acetylene. The nonlinear behavior of the grating coupling, due to the third order nonlinear susceptibility of the polymer, has been investigated. We have used laser sources, producing short pulses ((tau) equals 100 ps) at (lambda) equals 1.064 micrometers and ultrashort pulses ((tau) equals 1 ps) at (lambda) equals 610 nm, to study the change in the coupling efficiency with respect to the pulsed beam average input power. In the two cases, the changes are attributed respectively to a thermal and electronic nonlinearity of the refractive index. First theoretical modeling of the obtained data is given in the frame of the coupled mode approach to the nonlinear behavior.

Paper Details

Date Published: 25 August 1994
PDF: 9 pages
Proc. SPIE 2212, Linear and Nonlinear Integrated Optics, (25 August 1994); doi: 10.1117/12.185158
Show Author Affiliations
Francesco Michelotti, Univ. degli Studi di Roma/Sapienza, INFM, and GNEQP/CNR (Italy)
Andrea Giancola, Univ. degli Studi di Roma/Sapienza, INFM, and GNEQP/CNR (Italy)
F. Cataldo, Univ. degli Studi di Roma/Sapienza, INFM, and GNEQP/CNR (Italy)
Mario Bertolotti, Univ. degli Studi di Roma/Sapienza, INFM, and GNEQP/CNR (Italy)


Published in SPIE Proceedings Vol. 2212:
Linear and Nonlinear Integrated Optics
Giancarlo C. Righini; David Yevick, Editor(s)

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