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Proceedings Paper

High coupling efficiency, highly robust optical fibre passive alignment
Author(s): Jocelyn Lauzon; Bruno Dion; Lorrain Leduc; Chanserey Ledoux; Daniel Bessette
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Paper Abstract

In this presentation we will present a new passive alignment method used to obtain highly efficient optical fibre coupling from VCSELs (vertical-cavity surface-emitting lasers). This method is compatible with low-cost, high-yield volume production of compact transceivers for applications in rugged environments. Coupling efficiencies larger than 94% have been obtained using this visually-aided passive alignment method for the coupling between a rounded-tip, 50μm core graded-index fibre and an 850nm VCSEL having an emission area diameter of approximately 25&mgr;m. Our alignment procedure was used to make compact, high-speed (2Gbps) transceivers that can work from -50 to 105oC. They have shown to be able to resist to mechanical shocks of more than 200g. They have also shown to maintain a constant coupling efficiency while being submitted to 35Grms random vibration tests around 200Hz.

Paper Details

Date Published: 26 October 2007
PDF: 7 pages
Proc. SPIE 6796, Photonics North 2007, 67962G (26 October 2007); doi: 10.1117/12.779229
Show Author Affiliations
Jocelyn Lauzon, CMC Electronics Inc. (Canada)
Bruno Dion, CMC Electronics Inc. (Canada)
Lorrain Leduc, CMC Electronics Inc. (Canada)
Chanserey Ledoux, CMC Electronics Inc. (Canada)
Daniel Bessette, CMC Electronics Inc. (Canada)

Published in SPIE Proceedings Vol. 6796:
Photonics North 2007

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