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:
Aug. 13, 1991
Filed:
Jun. 25, 1990
Edward G Myszka, St. Charles, IL (US);
Motorola Inc., Schaumburg, IL (US);
Abstract
An optical coupling arrangement comprising: an optical laser emitter (4); an optical fiber (8); mounting means (10, 12, 14) for mounting the laser relative to the optical fiber so as to couple into the optical fiber light emitted by the laser; sensing means (11, 18, 24) for sensing the level of a predetermined proportion of light in the optical fiber; and piezoelectric moving means (10, 14) for moving the laser in orthogonal directions responsive to the sensing means so as to the increase coupling into the optical fiber of light emitted by the laser. The sensing means and the piezoelectric moving means thus form a closed, auto-alignment feedback loop which moves the laser relative to the optical fiber so as to compensate for movement between the laser and the optical fiber, thereby ensuring maximum coupling efficiency between the laser and the optical fiber.