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Determination of normalized propagation constants for the double-clad planar Nd:YAG and Yb:YAG waveguide lasers

V. A. POPESCU1,* , N. N. PUSCAS1

Affiliation

  1. Physics Department, University "Politehnica "of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania

Abstract

The exact normalized propagation constants for the five-layer slab waveguide laser and for its three-layer slab sub structures (infinite clad waveguide and coreless structure) are determined at pumping and lasing wavelengths. Since the core dimensions of a Nd:YAG waveguide laser are higher compared with a Yb:YAG waveguide laser, the proportion of the fundamental mode that exists as an evanescent field and the losses are smaller to the Nd3+-doped structure..

Keywords

Nd:YAG and Yb:YAG waveguide lasers, Quantum mechanics, Normalized propagation constants.

Submitted at: May 8, 2006
Accepted at: May 18, 2006

Citation

V. A. POPESCU, N. N. PUSCAS, Determination of normalized propagation constants for the double-clad planar Nd:YAG and Yb:YAG waveguide lasers, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 3, pp. 1262-1266 (2006)