ALIGNING OPTICAL COMPONENTS IN A MULTICHANNEL RECEIVER OR TRANSMITTER PLATFORM

摘要

Embodiments described herein describe a sub-mount that is etched to include respective cavities with at least two adjacent sides that align optical filters and a mirror. Moreover, the cavities are arranged on the sub-mount such that when the filters and mirror are disposed in the cavities, they align in a manner that enables the performance of a multiplexing or demultiplexing function as part of, for example, a zigzag multiplexer/demultiplexer. In one embodiment, the filters and mirrors are aligned passively rather than actively. The sub-mount may then be placed on a substrate that includes other components of a ROSA or TOSA. In one embodiment, the substrate is also etched to include a cavity two adjacent sides to align the sub-mount so that sub-mount is passively aligned once disposed into the cavity.

主权项

1. A method comprising:
disposing a mirror into a first cavity such that respective surfaces of the mirror and first cavity are brought into contact and urge the mirror and first cavity into a first predetermined relationship with one another; and disposing an optical filter into a second cavity such that respective surfaces of the optical filter and second cavity are brought into contact and urge the optical filter and second cavity into a second predetermined relationship with one another, wherein the first and second cavities are arranged relative to each other so that disposing the mirror and optical filter cause the mirror and the optical filter to be passively aligned to perform one of a demultiplexing and multiplexing function using an optical signal incident on the optical filter.