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Proceedings Paper

Modeling, analysis, design, and optimization of tightly packed erbium-doped waveguide amplifiers
Author(s): Irene Mozjerin; Shlomo Ruschin; Amos Hardy
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Paper Abstract

The design of compact spiral erbium-doped waveguide amplifiers (EDWAs) is considered under two constraints. The first one is the minimization of the chip area required for obtaining a predetermined gain, and the second one the maximization of the gain available from a limited area. It is shown that considerable benefit in gain and compactness of spiral EDWAs can be achieved by allowing tight bends with relatively high bend-induced losses. The effect of amplified spontaneous emission along with gain degradation on the noise figure in compact spiral EDWAs is analyzed. It is found that the dependence of the optimized limited area EDWA noise figure on the chip area attains a maximum at some definite area value. It is also found that there is a range of area values, where the optimized limited area EDWA noise figure is subjected to pronounced changes under small variations of the chip area. The study is based on a modified rate-propagation equation model that takes into account bend-induced losses in curved waveguides with varying radius of curvature. Numerical calculations based on actual waveguide parameters show the possibility of fabricating high gain, small size EDWAs.

Paper Details

Date Published: 28 April 2005
PDF: 9 pages
Proc. SPIE 5722, Physics and Simulation of Optoelectronic Devices XIII, (28 April 2005); doi: 10.1117/12.588701
Show Author Affiliations
Irene Mozjerin, Tel Aviv Univ. (Israel)
Shlomo Ruschin, Tel Aviv Univ. (Israel)
Amos Hardy, Tel Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 5722:
Physics and Simulation of Optoelectronic Devices XIII
Marek Osinski; Fritz Henneberger; Hiroshi Amano, Editor(s)

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