Comprehensive study of VCSEL-MMF coupling techniques

Vertical cavity surface emitting lasers (VCSELs) are in high demand in short-reach optical interconnects. Reflex Photonics is a leading company in developing VCSEL-based optical transceivers for the harsh environments. So far, the speeds up to 12.5 Gb/s for a reach of 100 m have been achieved. One of the key bottleneck in developing rugged transceivers is the loss associated with the coupling light from the VCSEL to the multimode fiber (MMF). By analyzing the overlapping modes from the VCSEL to the MMF, the optimum launching condition can be determined. In this project, Lumerical mode, which is an optical modeling tool, will be used to perform the mode overlap analysis at several launching conditions. The results of this project helps the partner organization to improve the performance of the existing transceivers by modifying the optical interfaces used for the VCSEL-MMF coupling.

Faculty Supervisor:

Odile Liboiron-Ladouceur


Mohammadreza Sanadgol Nezami


Reflex Photonics


Engineering - computer / electrical


Information and communications technologies




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