1results about How to "Does not affect signal quality" patented technology

This invention belongs to the field of optical communication technology, specifically providing a multi-film TOSA packaging structure, including a TO-CAN and an optical fiber adapter. The optical fiber adapter is installed at the cap end of the TO-CAN and forms a mirror cavity with the TO-CAN. A first collimating lens, a second collimating lens, and a filter are disposed within the mirror cavity. The first collimating lens, the filter, the second collimating lens, and the optical fiber port of the optical fiber adapter are arranged sequentially along the emission optical path of the TO-CAN. The filter is used to prevent reflected light from entering the TO-CAN or the optical fiber port. This multi-film TOSA packaging structure provided by this invention is highly integrated. The collimating lens converts the laser light output into parallel light, resulting in a small spot size, facilitating optical path transmission, and reducing energy loss. Through the cooperation of the collimating lens and the filter, reflected light in the optical path does not affect signal quality in the TOSA coaxial package, meeting specification requirements and achieving hermetic packaging.