Dynamics of self-organized x(2) gratings in optical fibers

Avais Kamal; Robert W. Terhune; Doreen A. Weinberger

doi:10.1117/12.51158

30 December 1991 Dynamics of self-organized χ⁽²⁾ gratings in optical fibers

Avais Kamal, Robert W. Terhune, Doreen A. Weinberger

Proceedings Volume 1516, International Workshop on Photoinduced Self-Organization Effects in Optical Fiber; (1991) https://doi.org/10.1117/12.51158
Event: International Workshop on Photoinduced Self-Organization Effects in Optics, 1991, Quebec City, Canada

Abstract

In this paper we report experiments on the dynamic of self-organized (chi)⁽²⁾ gratings. An important observation is that the initial growth rate of (chi)⁽²⁾ gratings is always linear in time. A fast transient and slow fluctuations are also observed in certain cases. The initial growth rate of the grating amplitude as a function of the irradiances of the seeding fundamental ((omega)) and second harmonic (2(omega)) beams was measured and was determined to have a power dependence on I(2(omega)) of exponent 1.48 +/- 0.2, and on I((omega)) of 0.9 +/- 0.2. A model based on selective ionization of dipolar defects due to an interference between two-photon and three-photon processes has been explored in the context of these results.

Citation Download Citation

Avais Kamal, Robert W. Terhune, and Doreen A. Weinberger "Dynamics of self-organized χ⁽²⁾ gratings in optical fibers", Proc. SPIE 1516, International Workshop on Photoinduced Self-Organization Effects in Optical Fiber, (30 December 1991); https://doi.org/10.1117/12.51158

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