Patent 9772467 was granted and assigned to Finisar on September, 2017 by the United States Patent and Trademark Office.
A method may include selecting a transistor-outline can (TO-can) assembly cap. The method may further include welding the TO-can assembly cap to a rim that surrounds an optical opening of an optical subassembly box (OSA) such that the TO-can assembly cap hermetically seals the optical opening and allows optical signals to pass through the TO-can assembly cap and the optical opening.