26 October 2007 High coupling efficiency, highly robust optical fibre passive alignment
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Proceedings Volume 6796, Photonics North 2007; 67962G (2007) https://doi.org/10.1117/12.779229
Event: Photonics North 2007, 2007, Ottawa, Canada
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.
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Jocelyn Lauzon, Jocelyn Lauzon, Bruno Dion, Bruno Dion, Lorrain Leduc, Lorrain Leduc, Chanserey Ledoux, Chanserey Ledoux, Daniel Bessette, Daniel Bessette, } "High coupling efficiency, highly robust optical fibre passive alignment", Proc. SPIE 6796, Photonics North 2007, 67962G (26 October 2007); doi: 10.1117/12.779229; https://doi.org/10.1117/12.779229
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