Parallel optical transceiver with top and bottom lenses

摘要

A parallel optical communications module includes a top lens and a bottom lens that are spaced from one another to inhibit mechanical forces acting upon the top lens from being transferred to the bottom lens, which is optically aligned with an opto-electronic light source or light detector. The top lens has a reflector portion configured to redirect the optical signals between the bottom lens and one or more optical fibers.

主权项

1. An optical communications module, comprising:
a module housing having a forward end coupleable to a fiber-optic cable; a printed circuit board included in an electro-optical sub-assembly; an opto-electronic device mounted in fixed relation to a surface of the printed circuit board, the opto-electronic device having a plurality of opto-electronic elements with corresponding optical axes normal to the surface; a bottom lens device mounted over the opto-electronic device along an optical axis; and a top lens device, defining a cavity between the bottom lens device and an interior of top lens device, the bottom lens device extending into the cavity without contacting the top lens device, the top lens device having a fiber port configured to communicate optical signals with the fiber-optic cable and a device port configured to communicate the optical signals with the opto-electronic device through the bottom lens device, the top lens device having a reflector portion configured to redirect the optical signals at a non-zero angle between the fiber port and the device port.