Patent ID: 6786652
Filing Date: 2004-09-07
Classification: G02B

Abstract:
A process for fabricating a photonics package comprising:positioning and securing a photodetector on a first wall of a housing in alignment with and opposite to an aperture in a second wall of the housing; securing, as by laser welding, a first closure over the aperture, the first closure including a window aligned with the photodetector; enclosing a portion of an optical fiber in a ferrule; inserting an end portion of the optical fiber enclosed in the ferrule through a flange and through the window into the housing with the flange abutting the first closure and covering the window; determining the relative location of the optical fiber with resoect to the photodetector through a viewing aperture in the housing; laterally adjusting the position of the flange on the first closure as needed to alien the optical fiber with the photodetector; longitudinally adiusting the location of the ferrule within the flange as needed to adjust the spacing between the optical fiber and the photodetector; welding the ferrule to the flange; initially laser welding the flange to the housing; activating a settable sealing material for hermetically sealing the flange to the housing; adjusting the position of the flange on the housing and further laser welding the flange as the sealing material sets to accurately position the optical fiber with respect to the photodectector; and securing a second closure over the viewing aperture.