Integrated optoelectronic chip and lens array
View Patent ↗An optoelectronic coupling system and methods of forming the same include an optoelectronic chip mounted on a substrate. The optoelectronic chip includes one or more optoelectronic components. A lower lens array is positioned over the optoelectronic chip and has a lower surface, with a first cut-away portion to accommodate the optoelectronic chip, and an upper surface that has one or more lower lenses positioned over respective optoelectronic components. An upper lens array is positioned over the lower lens array and has comprising one or more upper lenses positioned over respective lower lenses.
1. A method of forming an optoelectronic device, comprising:
mounting an optoelectronic chip on a substrate, the optoelectronic chip comprising one or more optoelectronic components;
forming a lower lens array having a lower surface that comprises a first cut-away portion to accommodate the optoelectronic chip and having an upper surface that comprises one or more lower lenses and further comprises a second cut-away portion to accommodate wires connected to the optoelectronic chip;
forming an upper lens array comprising one or more upper lenses corresponding to respective lower lenses of the lower lens array;
mounting the lower lens array over the optoelectronic chip such that the one or more upper lenses are positioned over respective optoelectronic components; and
mounting the upper lens array over the lower lens array such that the one or more upper lenses are positioned over respective lower lenses.
2. The method of claim 1 , further comprising mounting the upper lens array to a waveguide before mounting the upper lens array to the lower lens array.
3. The method of claim 1 , wherein forming the upper and lower lens arrays comprise forming the upper and lower lenses in respective upper and lower lens cavities.
4. The method of claim 3 , wherein forming the upper and lower lens arrays further comprise forming respective upper and lower lens cavities with sloped walls.