Methode zum passiven Ausrichten von Diodenlaser-Arrays und optischen Fasern

摘要

A method of passively aligning optical receiving elements such as fibers (11) to the active elements of a light generating chip (10) includes the steps of forming two front (12, 13) and one side (14) pedestal structures on the surface of a substrate body (17), defining a vertical sidewall (18) of the chip to form a mating channel having an edge at a predetermined distance from the first active element, mounting the chip (10) epi-side down on the substrate surface, and positioning the fibers in fiber-receiving channels so that a center line of each fiber is aligned to a center line of a respective active element. When mounted, the front face of the chip is abutting the contact surfaces of the two front pedestals (12, 13), and the defined sidewall (18) of the mating channel is abutting the contact surface of the side pedestal (14). The passive alignment procedure is also effective in aligning a single fiber to a single active element.