SLOT TYPE LIMIT STRUCTURE FOR SINGLE-FIBER BIDIRECTIONAL OPTICAL MODULE AND FILTER

摘要

A slot-type limit structure for a single-fiber bi-directional optical module and filter. The module comprises a silicon-based optical platform; along a laser transmission direction, a laser for emitting laser light, a lens, a filter and an optical fiber sequentially arranged on a laser transmission path, the filter being a filter which allows the emitted laser to go through and which reflects the laser light returned by means of the optical fiber; also a photodetector for receiving the laser light reflected by the filter, wherein the silicon-based optical platform is etched and formed with a limit structure for fixing the foregoing elements; further, a package structure for coordinating with the silicon-based optical platform, and for packaging the foregoing elements. In the above embodiment, by means of employing the silicon-based optical platform as a platform for supporting the elements, certain structures of the fixed elements are directly formed on the silicon-based optical platform. When compared with the single-fiber bi-directional optical modules in the prior art, the present invention does not require the use of an additional fixation structure, which simplifies the installation structure of the single-fiber bi-directional optical module, and facilitates the installation of the single-fiber bi-directional optical module.