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Proceedings Paper

Optical design choices for VCSEL-based free-space optical interconnects
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Paper Abstract

We introduce a model for a clustered free-space optical interconnect and use this to determine the maximum array density which can be achieved, together with the optimal cluster lens size which maximizes this density. We assume that the sources are multimode vertical cavity surface emitting lasers and that refractive microlenses are used to collimate the VCSEL beams. We also assume that the relay lenses are diffractive lenses with a quadratic phase profile. We find that for short interconnect distances, the maximum channel density is limited by the speed of the relay lenses, but that as the interconnect distance increases, geometric aberrations become the limiting factor. We also determine the interconnect distance below which a micro-channel relay is more suitable and the distance above which a single lens solution is adequate.

Paper Details

Date Published: 15 April 2003
PDF: 11 pages
Proc. SPIE 4942, VCSELs and Optical Interconnects, (15 April 2003); doi: 10.1117/12.471908
Show Author Affiliations
Andrew G. Kirk, McGill Univ. (Canada)
Marc Chateauneuf, McGill Univ. (Canada)


Published in SPIE Proceedings Vol. 4942:
VCSELs and Optical Interconnects

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