Fiber and integrated optics

Optimization of optical film waveguides

P. V. Adamson


Abstract: Theoretical investigations were made of the possibility of optimization of the effective thickness, of the optical confinement factor Γ₁, and of the birefringence of a planar dielectric waveguide as a function of the waveguide parameter V and the waveguide asymmetry. For a given value of V it is possible to ensure higher values of Γ₁, for an asymmetric waveguide than for a symmetric one. An approximate expression is proposed for the factor Γ₁, of an asymmetric waveguide directly in terms of its thickness and the refractive indices of the layers.

UDC: 621.372.8.029.7

PACS: 42.82.Et, 42.79.Wc, 42.25.Lc

Received: 02.11.1989

 English version: Soviet Journal of Quantum Electronics, 1990, 20:10, 1268–1271

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