Share Email Print

Proceedings Paper

Saturation characteristics of gain guiding in index-antiguided waveguides
Author(s): Tsing-Hua Her; Xianyu Ao; Lee W. Casperson
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

We investigate numerically and analytically the effects of gain saturation on the propagation of the fundamental mode in a gain-guided index-antiguided slab waveguide. The propagating mode adapts to gain saturation by becoming less confined, while at the same time its peak intensity increases more slowly. The modal gain coefficient is shown to scale linearly with the modal confinement in the cladding. At steady state, both the mode shape and power remain constant. We show that, at large index antiguiding, the field profile inside the core remains nearly constant during propagation, which allows an analytical description of the evolution of the optical power inside the core.

Paper Details

Date Published: 17 February 2010
PDF: 8 pages
Proc. SPIE 7579, Laser Resonators and Beam Control XII, 757907 (17 February 2010); doi: 10.1117/12.841492
Show Author Affiliations
Tsing-Hua Her, The Univ. of North Carolina at Charlotte (United States)
Xianyu Ao, The Univ. of North Carolina at Charlotte (United States)
Lee W. Casperson, The Univ. of North Carolina at Charlotte (United States)

Published in SPIE Proceedings Vol. 7579:
Laser Resonators and Beam Control XII
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

© SPIE. Terms of Use
Back to Top