The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 1989
Filed:
Jul. 30, 1987
Suwat Thaniyavarn, Bellevue, WA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
An electrooptically tunable waveguide array combined with a semiconductor phase-locked laser array, to provide both amplitude shaping and phase control of the optical output. The tunable waveguide array includes an input waveguide array section with an array spacing matching that of the laser array, a tunable coupling array section for tailoring power distribution among the array elements, a tunable phase shifter array section for tailoring the relative phase distribution among the array elements, and an output waveguide array section of various possible configurations. The tunable waveguide array can be implemented either externally, independent of the laser array, or incorporated into the laser array to form a composite cavity-array.