Accession Number : ADD016215
Title : Fabrication and Phase Tuning of an Optical Waveguide Device.
Descriptive Note : Patent, Filed 16 Nov 92, patented 2 Nov 93,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Burns, William K ; Bulmer, Catherine H ; Greenblatt, Arthur S
Report Date : 02 Nov 1993
Pagination or Media Count : 7
Abstract : The manufacture of an optical waveguide device utilizing a fast, accurate method for tuning of the output phase angle of such devices to a desired operating point. Tuning is accomplished by adjusting the accumulated phase along a waveguide arm of the device by removing optical waveguide material using laser ablation. Due to the change in waveguide geometry in the ablated region, the optical phase velocity is changed and thus the optical path length is affected in that section of waveguide, thereby resulting in a change in output phase angle.
Descriptors : *OPTICAL WAVEGUIDES, *PATENTS, *PHASE MODULATION, ABLATION, ANGLES, LASERS, PATHS, PHASE VELOCITY, TUNING, VELOCITY, WAVEGUIDES, FABRICATION, OSCILLOSCOPES
Subject Categories : Fiber Optics and Integrated Optics
Distribution Statement : APPROVED FOR PUBLIC RELEASE