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:
Oct. 15, 1991
Filed:
Apr. 12, 1990
Terry P Bowen, Etters, PA (US);
John R Rowlette, Clemmons, NC (US);
AMP Incorporated, Harrisburg, PA (US);
Abstract
An optical source comprises (a) a laser light source for emitting light in a light path; and (b) at least one holographic optical element disposed in the light path; wherein the laser light source and the holographic optical element are integrated into a monolithic strucuture. The holographic optical element collimates emitted light, circularizes emitted light, compensates for optical source wavelength shifts, launches the emitted light so that it is efficiently coupled to an optical fiber, and/or isolates the laser light source from interfering reflected light. Since the optical source is disposed in a single monolithic structure and a discrete holographic optical element may perform five distinct functions, the optical sources are compact, commercially versatile and easy to handle.