Method for aligning electro-optic device with optical fiber array with optical grating couplers

摘要

A method is for aligning an electro-optic device. The method may include initially positioning an optical fiber array adjacent to optical grating couplers, and actively aligning the optical fiber array relative to the optical grating couplers in a yaw direction and a roll direction to determine a yaw and roll alignment at a first operating wavelength. The method may include actively aligning the optical fiber array relative to optical grating couplers in an x direction and a y direction to determine a first x and y alignment at the first operating wavelength, determining a second operating wavelength, and actively aligning the optical fiber array again relative to the optical grating couplers in the x direction and y direction to determine a second x and y alignment at the second operating wavelength.

主权项

1. A method for aligning an electro-optic device comprising a photonic chip having a plurality of optical grating couplers at a surface of the photonic chip, and an optical fiber array comprising a plurality of optical fibers and a body retaining proximal ends of the plurality of optical fibers in side-by-side relation, the method comprising:
initially positioning the optical fiber array adjacent the plurality of optical grating couplers; actively aligning the optical fiber array relative to the plurality of optical grating couplers in a yaw direction and a roll direction to determine a yaw and roll alignment at a first operating wavelength; after determining the yaw and roll alignment at the first operating wavelength, actively aligning the optical fiber array relative to the plurality of optical grating couplers in an x direction and a y direction to determine a first x and y alignment at the first operating wavelength; determining a second operating wavelength by determining a peak power transmission value and associated peak power wavelength while performing a spectral sweep, the associated peak power wavelength defining the second operating wavelength; and actively aligning the optical fiber array again relative to the plurality of optical grating couplers in the x direction and y direction to determine a second x and y alignment at the second operating wavelength.