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Proceedings Paper

Analytical theory of phase-locked arrays of antiguided diode lasers
Author(s): Anatoly P. Napartovich; Dan Botez
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Paper Abstract

A general theory of periodic diode laser arrays is developed in the approximation of an effective complex refractive index described by a step periodic function. Rigorous expressions are derived for the elements of a translation matrix. Explicit expressions are obtained for the near-field and far-field patterns of finite array modes. The concept of 2D (Gamma) -factor and the explicit expression for it are presented. Accurate analytical expressions for key parameters characterizing the resonant and adjacent array modes are obtained for the resonant structure. By using an expansion, the radiation loss versus index-step curve is well approximated near resonance by a parabola, which gives curve half-width at half intensity only 10 to 15 percent less than numerically calculated values. The analogy between the resonant arrays of antiguides and DFB lasers is discussed, and differential equations for the slowly varying envelope are derived.

Paper Details

Date Published: 6 June 1997
PDF: 11 pages
Proc. SPIE 2994, Physics and Simulation of Optoelectronic Devices V, (6 June 1997); doi: 10.1117/12.275611
Show Author Affiliations
Anatoly P. Napartovich, Troitsk Institute for Innovation and Fusion Research (Russia)
Dan Botez, Univ. of Wisconsin/Madison (United States)

Published in SPIE Proceedings Vol. 2994:
Physics and Simulation of Optoelectronic Devices V
Marek Osinski; Weng W. Chow, Editor(s)

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