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Proceedings Paper

Simulations of boundary layers and defective sites in coupled VCSEL arrays
Author(s): Spilios Riyopoulos
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Paper Abstract

This work addresses the effects of finite boundaries in coupled arrays as well as those from "defects" from individual bias failures, of interest for practical applications. Analysis and numerical simulations based on the tight-binding approximation show that phase-locking persists in finite arrays. Self-regulation of the edge cavity density and power generate boundary layers of differentiated cavity operation values. The inter-cavity phase shift remains nearly uniform, with a small superimposed linear slope caused by cross-cavity reflection interference from DBRs. Phase locking is robust against partial or complete failure to lase for individual cavity sites, or even entire rows, due to biasing errors. The inherent gain dependence on carrier depletion and on the lateral cavity interactions is shown to be important.

Paper Details

Date Published: 14 March 2005
PDF: 10 pages
Proc. SPIE 5737, Vertical-Cavity Surface-Emitting Lasers IX, (14 March 2005); doi: 10.1117/12.588771
Show Author Affiliations
Spilios Riyopoulos, Science Applications International Corp. (United States)

Published in SPIE Proceedings Vol. 5737:
Vertical-Cavity Surface-Emitting Lasers IX
Chun Lei; Kent D. Choquette, Editor(s)

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